| Chicago | Oklahoma City | |
| Utilities (Electricity, Heating, ...) for medium apartment | USD 139.17 | USD 147.92 |
| Oranges (1kg) | USD 2.64 | USD 4.54 |
| Water bottle (0.33 liter) | USD 1.36 | USD 1.13 |
| Local cheese (1kg) | USD 7.90 | USD 8.19 |
| Apartment (1 bedroom) in city centre | USD 1 465.28 | USD 812.50 |