company has a selling price of $20 a unit, variable costs of $10 a unit, and fixed costs of $40,000.

A) 5%- What is the breakeven point in dollar sales?

B) 4%- What quantity must be sold to earn a profit of $60,000?

C)2%- What is the Firm's total contribution margin at breakeven?

D)4% - How much revenue is needed to make an aftertax profit of $120,000? Assume a tax rate of 40%.

E) 5%- Assume the company sells 12,000 units and the total contribution margin increases by 10%, holding revenues constant, what is the income for the company?

F) 4%- Assume we have been selling 14,000 units. What is the net income if there is a 20% decrease in units sold?

G) 6%- By how much can fixed cost increase, if the firm increases its sales price by $4 and wants to make a profit of $40,000 by selling 9,000 units?