Jordan Friendly Bookstore has experienced rapid growth since its formation in 2015. Following is selected data from its annual report. 2019 2017 2018 2016 2015 Sales $1,500,000 $1,260.000 S970,000 $840,000 $600,000 Cost of Sales 1.008.000 971,000 598,000 515,000 360,000 Net Profit 60,000 53,000 46,000 39,000 30,000 Total Assets 1,489,000 1,100,000 897,000 768,000 545,000 Number of Books Sold 97,500 85,703 73,192 163,200 45,187 Required: a. Perform a horizontal analysis of the data given, using 2015 as the base year. b. Comment on the results