Exercise $22\mathrm{.}7($Algo$)$ Closing an Unprofitable Business Unit $($LO$22-1,$ LO$22-2,$ LO$22-3,$ LO$22-5)$

Shown as follows is a segmented income statement for Drexel$-$Hall during the current month:

$\backslash$table$[[,$Drexel$-$Hall,Profit Centers$],[,$Store $1,,$Store $2,,$Store $3,],[$Sales$,,$Dollars,$8,$Dotlars,$\%,$Dollars,$9,$Dollars,$\%],[\backslash$table$[[$Sales$],[$Variable costs$]],$$$,1,800,000,100\%,$$$600,000,100\%,$$$600,000,100\%,$$$600,000,100\%$

Please be exact with the anwser and clairify what the anwser is for each part; A$,$ B$,$ and C$.$