a. If Armstrong Company, with a break-even point at $ 660,000 of sales, has actual sales of $ 880,000, what is the margin of safety expressed
(1) In dollars
(2) As a percentage of sales?
b. If the margin of safety for Lankau Company was 25%, fixed costs were $ 2,325,000, and variable costs were 60% of sales, what was the amount of actual sales (dollars)?