The following information is from the records of daphne's restaurant.

Sales $400000 cost of sales 140000 cost of labor 104000 cost of overhead 120000

Assume that the given cost of labor is 30.0% variable and 70.0% fixed.

a. calculate profit

b. calculate breakeven point in dollars

c. calculate dollar sales required to earn a profit of $50000

d. if variable costs increase by $8000, what level of dollar sales will be required to earn a profit of $36000?

e. if cost of overhead increases by 10%, what level of dollar sales will be required to earn the $36000 profit?