| San Francisco | Yên Bái | |
| Imported beer at restaurant | USD 5.13 | USD 1.69 |
| Water bottle (0.33 liter) | USD 1.63 | USD 0.33 |
| 1 min. of prepaid mobile tariff | USD 0.17 | USD 0.11 |
| Mid-range restaurant | USD 70.00 | USD 14.15 |
| Chicken breasts at the market | USD 13.03 | USD 3.33 |