Cost-Volume-Profit;volume Defined in Sales Dollars

Cost-volume-profit;volume defined in sales dollars.An excerpt from the income statement of the Dawson Company follows.Fixed costs in Year 1 are $660,000.
Dawson Company
Income Statement
Year ended December 31,year 1

Required:
a.What percentage of sales revenue is variable cost?
b.What is the break-even point in sales dollars for Dawson Company?
c.If sales revenue falls to $2,500,000,what will be the estimated amount of profit?
d.What amount of sales dollars produces a profit of $1,000,000?
(Dawson Company;cost-volume-profit;volume defined in sales dollars. )