Mannings Guardian Medical 3D Face Mask (Individually Wrapped) White (20.5cm x 8cm) 30pcs
SKU 702373Listed since 8 Aug 2026, 4:52 am
Both channels currently show the same standard price.
Price last changed or was first recorded：26 Aug 2026, 1:00 am · Actual purchase price prevails
Price by channel
Projected tomorrow
Lines use each day's last confirmed price; intraday low and high remain visible in the table and point details.
Open accessible data tables
In-store price history
Only observations confirmed for the selected store are included; general catalogue prices are excluded.
| Date | Standard price | Historical position / discount | After discount |
|---|---|---|---|
| 2026-08-27 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-26 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-25 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-24 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-23 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-22 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-21 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-20 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-19 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-18 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-17 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-16 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-15 | HK$88.00 | — | HK$88.00 |
| 2026-08-14 | HK$88.00 | — | HK$88.00 |
| 2026-08-13 | HK$88.00 | — | HK$88.00 |
| 2026-08-12 | HK$88.00 | — | HK$88.00 |
| 2026-08-11 | HK$88.00 | — | HK$88.00 |
Official online price history
One row per day compares the standard price with the verified offer-equivalent amount.
| Date | Standard price | Historical position / discount | After discount (avg. each) |
|---|---|---|---|
| 2026-08-26 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-25 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-24 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-23 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-22 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-21 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-20 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-19 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-18 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-17 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-16 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-15 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-14 | HK$88.00 | 33% off | HK$58.67 |
| 2026-08-13 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-12 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-11 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-10 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-09 | HK$88.00 | 50% off | HK$44.00 |
| 2026-08-08 | HK$88.00 | 50% off | HK$44.00 |
Official online
More metrics
Current offers
Garfield 3.0（現行：2025-09-02 至 2099-12-31）
多買多慳
- Buy
- 1 items
- Free
- 1 items
- Receive in total
- 2 items
- Amount paid
- HK$88.00
- Average per item
- HK$44.00
買1送1
Mix and Match
- Buy
- 1 items
- Free
- 1 items
- Receive in total
- 2 items
- Amount paid
- HK$88.00
- Average per item
- HK$44.00
萬寧品牌/指定獨家品牌產品9折
Media Discount
- Discounted unit price
- HK$79.20
Email price alerts are not enabled yet.
Audit source observationsTechnical details and CSV export
Observed records
↓ CSVEach source check is one row. Offer averages are not single-item checkout prices.
| Observed | Channel | Standard price | Offer | Amount paid | Average each | Tomorrow | Status |
|---|---|---|---|---|---|---|---|
| 27 Aug 2026, 1:08 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 27 Aug 2026, 12:19 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 26 Aug 2026, 11:21 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 8:14 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 8:11 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 7:37 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 3:24 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 2:48 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 10:44 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 9:06 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 8:43 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 1:13 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 1:04 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 25 Aug 2026, 11:10 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 4:41 am | Official online | — | 萬寧品牌/指定獨家品牌產品9折 | HK$79.20 | HK$79.20 | — | Valid |
| 25 Aug 2026, 8:22 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 8:13 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 26 Aug 2026, 1:00 am | Official online | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 25 Aug 2026, 3:46 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 2:14 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 12:49 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 12:12 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 11:32 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 9:24 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 9:23 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 6:44 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 5:39 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 5:16 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 5:01 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 4:33 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 3:09 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 2:06 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 24 Aug 2026, 11:41 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 7:41 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 6:10 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 25 Aug 2026, 12:56 am | Official online | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 24 Aug 2026, 4:37 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 3:07 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 1:53 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 12:58 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 12:07 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 11:21 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 10:35 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 9:54 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 9:50 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 8:20 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 7:01 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 6:17 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 5:31 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 1:29 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 23 Aug 2026, 11:57 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 10:50 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 10:27 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 9:10 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 8:41 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 7:40 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 5:18 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 24 Aug 2026, 12:56 am | Official online | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 23 Aug 2026, 4:13 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 3:54 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 3:39 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 3:08 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 2:44 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 2:22 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 2:22 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 1:37 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 12:27 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 10:51 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 7:57 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 7:23 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 7:12 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 6:48 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 5:57 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 5:34 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 4:37 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 3:58 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 2:59 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 2:46 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 2:45 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 1:48 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 22 Aug 2026, 11:46 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 9:56 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 9:35 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 8:57 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 7:44 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 6:53 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 5:56 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 5:52 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 5:30 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 5:04 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 23 Aug 2026, 12:36 am | Official online | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 22 Aug 2026, 4:09 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 4:02 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 3:09 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 2:37 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 2:13 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 12:20 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 11:48 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 10:44 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 9:54 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 9:45 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 9:15 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 9:14 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 8:07 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 6:37 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 5:46 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 4:39 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 3:55 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 2:52 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 2:45 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 2:42 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 1:35 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 1:21 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 12:26 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 12:25 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 12:15 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 21 Aug 2026, 10:50 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 10:40 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 10:01 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 9:38 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 9:14 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 9:02 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 7:48 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 5:52 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 22 Aug 2026, 12:52 am | Official online | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 21 Aug 2026, 4:36 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 4:25 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 3:56 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 3:48 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 1:44 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:51 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:42 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 11:32 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 10:10 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 10:04 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 9:55 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 9:55 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 8:46 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 8:32 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 7:41 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 6:56 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 6:48 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 6:46 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 6:24 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 6:05 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 4:32 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 4:28 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 3:51 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 3:45 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 3:30 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 1:55 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 1:25 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 1:04 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:51 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:45 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:40 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:02 am | In-store | HK$88.00 | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 20 Aug 2026, 11:29 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 6:33 am | Official online | — | 買1送1 | HK$88.00 | HK$44.00 | — | Valid |
| 20 Aug 2026, 9:37 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 8:28 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 8:27 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 8:01 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 5:46 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 5:29 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 4:38 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 21 Aug 2026, 12:17 am | Official online | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 3:05 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 3:03 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 2:54 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 2:49 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 1:01 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 12:34 pm | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 11:59 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 11:59 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 11:59 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 11:53 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 11:00 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 9:55 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 9:48 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 9:48 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 9:37 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 9:05 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 8:50 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 8:28 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 8:26 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 7:22 am | In-store | HK$88.00 | — | — | — | — | Valid |
| 20 Aug 2026, 6:59 am | In-store | HK$88.00 | — | — | — | — | Valid |
History status: ready2026-08-11 → 2026-08-27