The Rapterzz Firm produces 2,000 parts each year that are used in one of its products. The unit product cost of this part is Variable manufacturing cost Fixed manufacturing cost $ 7.50 6.00 Unit product cost $13.50 The part can be purchased from an outside supplier for $10 per unit. If the part is purchased from the outside supplier, two-thirds of the fixed manufacturing costs can be eliminated. The effect on net operating income from purchasing the part would be a: Multiple Choice $7,000 increase $1,000 decrease $3.000 increase $5.000 decrease