E$9\mathrm{.}6($LO $1)($LCNRV$-$Error Effect$)$ LaGreca Company uses the LCNRV method, on an individual$-$item basis, in pricing its inventory items. The inventory at December $31,2020,$ included product X$.$ Relevant per$-$unit data for product X are as follows.

$\backslash$table$[[$Estimated selling price,$$50$