Please advise of the two ratios

QUESTION 3 INFORMATION Excerpts of the financial statements of Infosys Limited for 2019 are as follows: Statement of Comprehensive Income for the year ended 31 December 2019 R Sales (all credit) 9 240 000 Cost of sales 7 800 000 Gross profit 1 440 000 Operating expenses 1 080 000 Operating profit 360 000 Interest expense 140 000 Profit before tax 220 000 Tax 61 600 Profit after tax 158 400 Statement of changes in equity for the year ended 31 December 2019 R 62 000 Dividends for the year Statement of financial position as at 31 December 2019 R Assets Non-current assets Inventories Accounts receivable Cash 1 220 000 1 450 000 770 000 225 000 3 665 000 Equity and Liabilities Ordinary share capital Retained earnings 1 000 000 960 000 Long term loan (1296) 520 000 Accounts Payable Other current liabilities 460 000 725 000 3 665 000 REQUIRED 3.1 Use the information provided above to calculate the following ratios for Infosys Lim 3.1.5 Earnings retention ratio 3.1.6 Acid test ratio