Halley Company produces $2,000$ parts each year that are used in one of its products.$$ The unit product cost of this part is:

Variable manufacturing costs$$ $$7\mathrm{.}50$

Fixed manufacturing costs$$$$6\mathrm{.}00$

Unit Product cost$$$$13\mathrm{.}50$

The part can be purchased from the outside supplier for $$10$ per unit.$$ If the part is purchased from the outside supplier two$-$thirds of the fixed manufacturing overhead costs can be eliminated.$$ What is the$$ effect on net income as a result of purchasing the part?$$

If net operating income decreases, put your number in as a negative number.