Answer:
It will increase cost by $72,594
It is not convinient to buy the finials
It will be better to keep the production
Explanation:
Direct Materials 3.73
Direct labor    4.69
Variable overhead
61% of labor cost
4.69 x 0.61 = Â Â 2.86
Total Variable Cost 11.28
Offered Price     13.46
-                Make         Buy        Difference
Unit Cost                $11.28    $13.46    -$2.18
Total Variable Cost   $375,624.00  $448,218.00  -$72,594.00
Fixed Cost            $40,400.00  $40,400.00  $- Â
Total Cost           $416,024.00  $488,618.00 -$72,594.00