Manson Industries incurs unit costs of \$7 ( $4 variable and $3 fixed) in making an assembly part for its finished product. A supplier offers to make 19,400 of the assembly part at $6 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 o nogotive sign preceding the number es. -45 or parentheses es. (45).) The decision should be to the part