Answer and Explanation:
The computation is shown below:
a.
Differential analysis
Particulars Make Buy
Direct material 196000
Direct labour 140000
variable manufacturing
overhead 56000
Fixed manufacturing
overhead (84000 ÷ 3) 28000
Purchase cost (14000 × 35) 490000
Total relevant cost $420,000 $490,000
Financial (disadvantage) is -$70,000
b. No as there is a financial disadvantage
c.
Differential analysis
Particulars Make Buy
Direct material 196000
Direct labour 140000
variable manufacturing
overhead 56000
Fixed manufacturing
overhead (84000 ÷ 3) 28000
Opportunity cost $140,000
Purchase cost (14000 × 35) 490000
Total relevant cost $560,000 $490,000
Financial advantage is $70,000
d. Yes it should be accepted as it is a financial advantage