| Detroit | Lào Cai | |
| Tennis court rent (1 hour on weekend) | USD 12.50 | USD 6.01 |
| 1 Summer dress in a chain store | USD 45.00 | USD 26.38 |
| One-way ticket (local transport) | USD 2.00 | USD 0.24 |
| Taxi 1hour Waiting | USD 39.00 | USD 1.70 |
| Water bottle (1.5 liter) | USD 1.69 | USD 0.55 |