PLEASE HELP, just need a couple of ones to see how to do it, i don't need all the years

please show intrustuctions on how to do it in excel so i can guide me :)

thank you in advance :)

(4 pts) Prices are expressed in nominal dollars, and the nominal price data would include the effect of inflation. To accurately measure, it is necessary to eliminate the effects of inflation. Converting nominal price into real price is the nominal price data is divided by the price deflator for the period. Calculate the real prices and real income using CPI (base year =198284,CPI=100 ). (4 pts) Prices are expressed in nominal dollars, and the nominal price data would include the effect of inflation. To accurately measure, it is necessary to eliminate the effects of inflation. Converting nominal price into real price is the nominal price data is divided by the price deflator for the period. Calculate the real prices and real income using CPI (base year =198284,CPI=100 )