Dividends were paid on ordinary shares of $1,800,000,000$ VND and $1,560,000,000$ VND for $2022$ and $2023,$ respectively.

Using the financial data provided, calculate the following ratios for the last two years of business and present your findings in a table.

a$)$ Gross profit margin

b$)$ Net profit margin

c$)$ Return on capital employed

d$)$ The current ratio

e$)$ The quick ratio

f$)$ Inventory turnover period

g$)$ Accounts payable payment period

h$)$ Gearing ratio

i$)$ Earnings per share

j$)$ Dividend payout ratio