Calculate Yield $\%$ for a sales process with minimum expected sales target of $$12000.$ As per the last quarter sales the average is $$12500$ with standard deviation of $$3500$

$55\mathrm{.}67\%$

$68\mathrm{.}19\%$

$73\mathrm{.}66\%$

$85\mathrm{.}17\%$