mysql> select name, category, cpi_factor, rent_factor from item;
+------------------------------------------------------------------+------------------------+------------+-------------+
| name | category | cpi_factor | rent_factor |
+------------------------------------------------------------------+------------------------+------------+-------------+
| Meal, Inexpensive Restaurant | Restaurants | 10 | 0 |
| Meal for 2, Mid-range Restaurant | Restaurants | 2 | 0 |
| Combo Meal at McDonalds or Similar | Restaurants | 10 | 0 |
| Domestic Beer (0.5 liter draught) | Restaurants | 12 | 0 |
| Imported Beer (0.33 liter bottle) | Restaurants | 12 | 0 |
| Coke/Pepsi (0.33 liter bottle) | Restaurants | 12 | 0 |
| Water (0.33 liter bottle) | Restaurants | 12 | 0 |
| Milk (regular, 1 liter) | Markets | 30 | 0 |
| Loaf of Fresh Bread | Markets | 30 | 0 |
| Eggs (12) | Markets | 6 | 0 |
| Cheese (1kg) | Markets | 4.5 | 0 |
| Water (1.5 liter bottle) | Markets | 20 | 0 |
| Bottle of Wine (Mid-Range) | Markets | 2 | 0 |
| Domestic Beer (0.5 liter bottle) | Markets | 5 | 0 |
| Imported Beer (0.33 liter bottle) | Markets | 5 | 0 |
| Pack of Cigarettes (Marlboro) | Markets | 12 | 0 |
| One-way Ticket | Transportation | 20 | 0 |
| Monthly Pass | Transportation | 1.5 | 0 |
| Taxi (within center, approx. 5km) | Transportation | 10 | 0 |
| Apartment (1 bedroom) in City Centre | Rent Per Month | 0 | 0.25 |
| Apartment (1 bedroom) Outside of Centre | Rent Per Month | 0 | 0.25 |
| Apartment (2 bedrooms) in City Centre | Rent Per Month | 0 | 0.25 |
| Apartment (2 bedrooms) Outside of Centre | Rent Per Month | 0 | 0.25 |
| Basic (Electricity, Gas, Water, Garbage) | Utilities (Monthly) | 1 | 0 |
| Mobile Phone 100 Minutes Call | Utilities (Monthly) | 15 | 0 |
| Internet (1 Mbps ADSL flat) | Utilities (Monthly) | 1 | 0 |
| Price per Square Meter to Buy Apartment in City Centre | Buy Apartment Price | 0 | 0 |
| Price per Square Meter to Buy Apartment Outside of Centre | Buy Apartment Price | 0 | 0 |
| Median Monthly Disposable Salary (After Tax) | Salaries And Financing | 0 | 0 |
| Mortgage Interest Rate in Percentanges (%), Yearly For USD / EUR | Salaries And Financing | 0 | 0 |
| Gas (1 liter) | Transportation | 80 | 0 |
+------------------------------------------------------------------+------------------------+------------+-------------+
When calculating Local Purchasing Power, formula which is used for weights is 1.5 * cpi_factor + rent_factor.
This correction factor is used to estimate other goods and services which is not tracked at this website.
Local_Puchasing_Power_Index = Affordability(This_City) / Affordability(New York)
Affordability (of a city) = Average_monthly_disposable_income / sum_of (Price_in_the_city * (1.5 * cpi_factor) + rent_factor)