18. Calculations… Remember…in 2008 the market basket was valued at $14 … in 2009 the market basket was valued at $19 1. If the base year is 2008, what is the price index of 2009? Price Index = (New Year Price / Base Year Price) X 100 2. What is the inflation rate for 2009? Inflation Rate = { (New Year Price – Base Year) / Base Year Price } X 100