Table indicate the average retail price of milk and the Consumer Price Index in the year 1980 -1998.
Alter the CPI into 1990 = 100 and find out the real price of milk in the year of 1990 dollars.
To alter the CPI into 1990=100, divide the CPI for each year by the CPI for 1990. Employ the formula from part a & the new CPI numbers below to determine the real price of milk.
New CPI 1980 63 Real price of milk 1980 $1.67
1985 82 1985 $1.38
1990 100 1990 $1.39
1995 117 1995 $1.26
1998 125 1998 $1.29