GS Retail reported the following for the past two fiscal years: 2021 2020 Net sales $935,000 $818,000 Cost of goods sold 591,855 511,250 Profit 68,255 68,712 Calculate the gross profit margin and profit margin for both years. (Round answers to 2 decimal places, e.g. 12.73%.) Gross profit margin Profit margin 2021 2020 % % % % Comment on any changes in profitability. GS Retail's profitability has improved deteriorated