The following are the summarised financial ratios of Sandra Ltd for the past three years:

Item

$06/21$

$06/22$

$06/23$

Net Profit Margin $(\%)$

$2\mathrm{.}58$

$2\mathrm{.}76$

$2\mathrm{.}57$

ROCE $(\%)$

$17\mathrm{.}99$

$14\mathrm{.}81$

$16\mathrm{.}01$

ROA $(\%)$

$4\mathrm{.}81$

$6\mathrm{.}33$

$6\mathrm{.}39$

Interest Cover Ratio

$4\mathrm{.}51$

$4\mathrm{.}76$

$4\mathrm{.}54$

Gearing ratio $(\%)$

$856\mathrm{.}12$

$274\mathrm{.}62$

$239\mathrm{.}68$

Inventory Turnover

$17\mathrm{.}78$

$16\mathrm{.}94$

$17\mathrm{.}39$

Asset Turnover

$1\mathrm{.}42$

$1\mathrm{.}83$

$1\mathrm{.}91$

Current Ratio

$0\mathrm{.}68$

$0\mathrm{.}57$

$0\mathrm{.}54$

Acid Test Ratio

$0\mathrm{.}55$

$0\mathrm{.}23$

$0\mathrm{.}23$

Account receivable settlement period $($days$)$

$0\mathrm{.}86$

$1\mathrm{.}64$

$2\mathrm{.}22$

Account payable settlement period $($days$)$

$42\mathrm{.}38$

$42\mathrm{.}00$

$43\mathrm{.}28$

P$/$E Ratio

$33\mathrm{.}46$

$26\mathrm{.}11$

$29\mathrm{.}41$

Required:

$($a$)$ Analyse every financial ratio. $($Hint: you should comment on the trend's consequences for the company's performance and$/$or financial health, as well as whether it is favourable or unfavourable$).$

$($b$)$ Talk about if the company exhibits overtrading symptoms $($hint: in your response, you should define overtrading before talking about whether the company exhibits overtrading symptoms$).$