Manson Industries incurs unit costs of $8 ($5 variable and $3 fixed) in making an assembly part for its finished product. A supplier offers to make 10,400 of the assembly part at $6 per unit. If the offer is accepted, Manson will save all variable costs but no fixed cost 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 eg.-45 or parentheses e.g. (45).) Variable manufacturing costs Fixed manufacturing costs Purchase price Total annual cost Make Buy Net Income Increase (Decrease)