Assume that Cullumber & Co$.,$ which follows IFRS, has prepared the following aging of its accounts receivable. collection history suggests that the probability of collection for its accounts receivable is $96\%$ for balances under $61$ days, $85\%$ for balances $61-90$ days old, $80\%$ for balances $91-120$ days old, and $75\%$ for balances over $120$ days.

$\backslash$table$[[$Customer Name,Balance Dec. $31,\backslash$table$[[$Cullumber & Co$.],[$Aging Schedule$]]],[$Age $($number of days accounts are outstanding$)],[$Under $61$ Days,$61-90$ Days,$91-120$ Days,Over $120$ Days$],[$Atlantic Stainless Steel Corp.,$$10,388,$$$7,420,$$$2,968,,],[$Brockville Steel Company,$36,040,36,040,,,],[$Cambridge Sheet & Tube Co$.,4,770,,,,$$$4,770$