Financial ratios

Explain the development these years looking on the statement, and critically evaluate the financial statement, cross-sectionally and identify their main strengths and weaknesses and make recommendations for future improvement.

12/31/2020 12/31/2019 12/31/2018 12/31/2017 Period Ending Liquidity Ratios 135% 88% 157% 135% Current Ratio Quick Ratio Cash Ratio 1049 699 13396 110% 47% 26% 599 66% 79% 80% 78% 79% 199 36% 149 26% Profitability Ratios Gross Margin Operating Margin Pre-Tax Margin Profit Margin Pre-Tax ROE After Tax ROE 18% 285 23% 23% 40% 27% 12% 18% 6% 17% 15% 26% 18% 30% 12/31/2020 12/31/2019 12/31/2018 12/31/2017 Period Ending Liquidity Ratios 135% 88% 157% 135% Current Ratio Quick Ratio Cash Ratio 1049 699 13396 110% 47% 26% 599 66% 79% 80% 78% 79% 199 36% 149 26% Profitability Ratios Gross Margin Operating Margin Pre-Tax Margin Profit Margin Pre-Tax ROE After Tax ROE 18% 285 23% 23% 40% 27% 12% 18% 6% 17% 15% 26% 18% 30%