this is one question

Futura Company purchases the 75,000 starters that it installs in its standard line of farm tractors from a supplier for the price of $11.50 per unit. Due to a reduction in output, the company now has idle capacity that could be used to produce the starters rather than buying them from an outside supplier. However, the company's chief engineer is opposed to making the starters because the production cost per unit is $12.50 as shown below: Total ces Per Unit Direct materials $ 5.00 Direct labor 3.50 Supervision 1.90 $ 142,500 Depreciation 1.20 $ 90,000 Variable manufacturing overhead 0.50 Rent 0.40 $ 30,000 Total product cont $ 12.50 1 Futura decides to make the starters, a supervisor would have to be hired (at a salary of $142,500) to oversee production. However, the company has sufficient idle tools and machinery such that no new equipment would have to be purchased. The rent charge above is based on space utilized in the plant. The total rent on the plant is $84.000 per perlod. Depreciation is due to obsolescence rather than wear and tear Required: What is the financial advantage (disadvantage) of making the 75,000 starters instead of buying them from an outside supplier