Hello, I have the following question. Shown here is an income statement in the traditional format for a firm with a sales volume of 15,500 units. Revenues $170,500 Cost of Goods sold ($10,000 +...

Hello,

I have the following question.

Shown here is an income statement in the traditional format for a firm with a sales volume of 15,500 units.

Question D1: Calculate the firm's operating income (or loss) if the selling unit price and variable expense per unit do not change and the total revenues increase by $13,000.  Do not round intermediate calculations.

Question D2: Calculate the firm's operating income (or loss) if the selling unit price and variable expense per unit do not change and the total revenues decrease by $10,000.  Do not round intermediate calculations.