Frank Co. is currently operating at 80% of capacity and is currently purchasing a part used in its manufacturing operations for $25 unit. The unit cost for Frank Co. to make the part is $30, which includes $3 of fixed costs. If 20,000 units of the part are normally purchased each year but could be manufactured using unused capacity, what would be the amount of differential cost increase or decrease for making the part rather than purchasing it?

what is the answer out of multiple choice above^

Target Costing Laser Cast Inc. manufactures color laser printers. Model J20 presently sells for $150 and has a product cost of $120, as follows: Direct materials $90 Direct labor 20 Factory overhead 10 Total $120 It is estimated that the competitive selling price for color laser printers of this type will drop to $140 next year. Laser Cast has established a target cost to maintain its historical markup percentage on product cost. Engineers have provided the following cost-reduction ideas: 1. Purchase a plastic printer cover with snap-on assembly, rather than with screws. This will reduce the amount of direct labor by 9 minutes per unit. 2. Add an inspection step that will add six minutes per unit of direct labor but reduce the materials cost by $3 per unit. 3. Decrease the cycle time of the injection molding machine from four minutes to three minutes per part. Thirty percent of the direct labor and 42% of the factory overhead are related to running injection molding machines. The…

A4