| The favorite rewards system for customers | Response (%) | Mean | Ranking |
| Loyalty card | 20.6 | 20.6 | 2 |
| Voucher | 9.8 | 9.8 | 4 |
| Discounts | 49.5 | 49.5 | 1 |
| Free goods | 20.1 | 20.1 | 3 |
| N = 2000 | 100 |
| |