please help with letter B

a. If Canace Compaen, with a breakeven poirt at 5377,400 of sales, has actual sales of 5510,000, what is the margln of safety expressed (1)-in dollars and (2) as a percentage of sales? Round the percentage to the nearest whole number, 2. b. It the margin of safety for Canace Company was 25\%, fixed costs were 31,093,125, and variabio costs were 75\% of cales, what was the amount of actual sales (doll ars)? (Wint: Determine the treak-even in salns dellars first) thatety