Answer:
C. $2 decrease
Explanation:
The impact on profit, in this situation, is given by the difference in profit from selling an extra Slicer instead of a Chopper. This can be done by subtracting the contribution margin of a Slicer by the contribution margin of a Chopper.
Contribution margin is the difference between the selling price and the variable manufacturing price. The impact on profit would be:
[tex]\Delta P= CM_S-CM_C\\\Delta P = (\$10-\$6)-(\$15-9)\\\Delta P=-\$2[/tex]
Therefore, the impact on profit if 360 units are sold but 145 Slicer models are sold instead of 144 would be a $2 decrease.