Final answer:
The inflation rate between 1987 and 2007 was calculated using the CPI data for those years, with the resulting inflation rate being 75%.
Step-by-step explanation:
The question asks about calculating the inflation rate between 1987 and 2007 using the Consumer Price Index (CPI) data provided. The inflation rate can be calculated using the formula: ((CPI in later year - CPI in earlier year) / CPI in earlier year) * 100%. Here, we have CPI of 120 in 1987 and CPI of 210 in 2007.
To calculate the inflation rate between 1987 and 2007:
Subtract the initial year CPI from the final year CPI. (210 - 120 = 90)
Divide the result by the initial year CPI. (90 / 120 = 0.75)
Multiply by 100 to get the percentage. (0.75 * 100 = 75%)
So, the inflation rate between 1987 and 2007 was 75%.