The company sold 696,000 units at an average selling price of per solution $4.20 per unit. The variable expenses were $1,900,080, and the fixed expenses were $683,256.

Given this information, how do I answer the following:

If management wanted to increase its income from this product by 10%, how many additional units would have to be sold to reach this income level?

If sales increase by 51,000 units and the cost behaviors do not change, how much will income increase on this product?