The GDP deflator is calculated as
- A.(Real GDP divided by nominal GDP) multiplied by 100
- B.(Nominal GDP divided by real GDP) multiplied by 100
- C.Nominal GDP minus real GDP
- D.GDP divided by population
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The deflator compares what the year's output costs at this year's prices with what the same output would cost at base year prices, so nominal GDP goes on top and real GDP below, and the ratio is expressed as a percentage.
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