The following total prices of a specified market basket were calculated for each of the years 1987 through 1991 :

\section*{Required}
1. Using 1989 as the base year, prepare a price index for the five-year period.
Round your answers to the nearest \(1 / 10 \%\).
2. Convert the index from a 1989 base year to a 1991 base year.

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Year 1987 Total Price $20,300 1988 30,400 1989 35,800 1990 40,500 1991 50,100