Brief Exercise 20-04 Manson Industries incurs unit costs of $8 (55 variable and 53 fixed) in making an assembly part for its finished product. A supplier offers to make 12,400 of the assembly part at 56 per unit. If the offer is accepted, Manson will save all variable costs but no fixed costs. Prepare an analysis showing the total cost saving, if any, Manson will realize by buying the part. (Enter negative amounts using either a negative sign preceding the number .g.-45 or parentheses eg. (45).) Buy Net Income Increase (Decrease) Variable manufacturing costs Fixed manufacturing costs Purchase price Total annual cost The decision should be to the part