# Math Help - Cpi

1. ## Cpi

Does anyone know how to calculate the CPI for this year and for 5 years from now. I can use a Hershey bar @ todays cost of $0.70. This math is getting stressful PLEASE!!! 2. Originally Posted by crazykitty Does anyone know how to calculate the CPI for this year and for 5 years from now. I can use a Hershey bar @ todays cost of$0.70.

This math is getting stressful

Take the CPI for today to be 100, let the price 5 years hence be x then the
CPI 5 years hence is (x/0.70)*100.

Index=(price at time of interest)/(price at base year)*100

(BTW in the UK we use the price of Mars bars as a tracker of CPI)

RonL

3. ## ThankYou

hey Capt black

THANKS!!!!!

Mars is equally tasty next to hershey's lol