Pembina is a West Coast company with more than 400 drug stores. Financial information for fiscal 2020 and 2019 follows: Fiscal 2020 (in thousands) Sales Cost of merchandise sold Merchandise inventory $5,115,300 3,874,200 445,320 Fiscal 2019 $4,715,300 3,593,800 542,800 (a) Compute the gross margin percentage for both years. (Round answers to 1 decimal place, e.g. 10.6%.) 2020 2019 Gross margin percentage % %