GS Retail reported the following for the past two fiscal years: Net sales Cost of goods sold Profit 2021 $938,000 593.754 68,474 2020 $814,000 506,308 68,376 Calculate the gross profit margin and profit margin for both years. (Round answers to 2 decimal places, eg. 12.73%) 2021 2020 90 Gross profit margin Profit martin Comment on any changes in profitability GS Retail's prohtability has improved deteriorated