$20$X$220$X$1$

ROA$=($PBIT$/$Total Assets$)$ x $100(38\mathrm{.}000/105,100)$ x$100=36,15\%(35\mathrm{.}280/96\mathrm{.}100)$ x$100=36\mathrm{.}71\%$

Gross profit margin$=($Gross profit$/$Sales revenue$)$ x$100(64\mathrm{.}000/160\mathrm{.}000)$ x$100=40\%(55\mathrm{.}080/153\mathrm{.}000)$ x$100=36\%$

Current ratio$=$

Current assets$/$Current Liabilities $30\mathrm{.}100/8\mathrm{.}500=3,528\mathrm{.}100/9\mathrm{.}250=3$

Quick ratio$=($Current Assets$-$Stock$)/$Current liabilities $(30\mathrm{.}100-10\mathrm{.}500)/8\mathrm{.}500=2\mathrm{.}3(28\mathrm{.}100-10\mathrm{.}900)/9\mathrm{.}250=1\mathrm{.}8$

Inventory turnover$=($Average inventories held$/$Coast of sales$)$ x $12(10\mathrm{.}500/96\mathrm{.}000)$ x $365=40$ days $(10\mathrm{.}900/97\mathrm{.}920)$ x$365=40$ days

Trade receivable days$=($Average trade receivable$/$Credit sales$)$ x$365(19\mathrm{.}600/160\mathrm{.}000)$ x $365=45$ days $(17\mathrm{.}200/153\mathrm{.}000)$ x$365=41$ days

Gearing ratio$=[$Long term liabilities$/($Share capital $+$ Reserves $+$ Long term liabilities$)]$x$100[23\mathrm{.}700/(25\mathrm{.}000+56\mathrm{.}400+23\mathrm{.}700)]$x$100=$

$23\mathrm{.}700/105\mathrm{.}100$x$100=22\mathrm{.}5\%[45\mathrm{.}100/(25\mathrm{.}000+26\mathrm{.}000+45\mathrm{.}100)]$x $100=[45\mathrm{.}100/96\mathrm{.}100)$x$100=47\%$

Interest cover$=$ PBIT$/$Interest paid $38\mathrm{.}000/7\mathrm{.}600=5$ times $35\mathrm{.}280/7\mathrm{.}056=5$ times

c$)$ Using the ratios calculated in report on the financial performance, efficiency and working capital management of the company.