In a certain country, the cost of the market basket of goods in 2017 was $4,200. In the year 2016, the cost of the market basket was $3,950, and the cost of the market basket in 2015 was $3,875.1- Calculate the Consumer Price Index (CPI) in year 2017 using 2015 as the base year2-Based on the CPI you calculated above, has the cost of purchasing in 2017 increased or decreased since 2015, and by how much?3-Calculate the Consumer Price Index (CPI) in year 2017 using 2016 as the base year.4- Calculate the inflation rate from 2016 to 2017
