Go to theCPI Inflation Calculator

https://www.bls.gov/data/inflation_calculator.htm

1. Input a dollar amount and input 2 different time periods.You can use any dollar amount and any time periods, but choose either the same months or the same years when you are comparing.
2. Calculate the inflation rate over your chosen period. You must show your calculations.You need to show your numbers plugged into the correct formula.
3. What does the inflation rate tell us about prices.Remember, the inflation rate could be negative depending on your choice of dates.