Kingbird Co$.$ follows the practice of valuing its inventory at the lower$-$of$-$cost$-$or$-$market. The following information is available from the company's inventory records as of December $31,2025.$

$\backslash$table$[[$Item$,$Quantity,Unit Cost,$\backslash$table$[[$Replacement$],[$Cost$/$Unit$]],\backslash$table$[[$Estimated Selling$],[$Price$/$Unit$]],\backslash$table$[[$Completion & Disposal$],[$Cost$/$Unit$]],\backslash$table$[[$Normal Profit$],[$Margin$/$Unit$]]],[$A$,1,400,$$$8\mathrm{.}48,$$$9\mathrm{.}49,$$$11\mathrm{.}87,$$$1\mathrm{.}70,$$$2\mathrm{.}03$