Please explain how you got each answer

Minden Company introduced a new product last year for which it is trying to find an optimal selling price Marketing studies suggest that the company can increase sales by 5,000 units for each $2 reduction in the selling price. The company's present selling price is $100 per unit, and variable expenses are $70 per unit Fixed expenses are $832,800 per year. The present annual sales volume (at the $100 selling price) is 25,900 units Required: 1. What is the present yearly net operating income or loss? 2. What is the present break-even point in unit sales and in dollar sales? Break-even point in units Break-even point in dollar sales 3. Assuming that the marketing studies are correct, what is the maximum annual profit that the company