Ayayai charges $30 per day to board a dog. The variable cost to feed and handle a dog is $6 per day. The fixed costs for maintaining the Ayayai are $173,000 per year, and the company's income tax rate is 30%. The measure of volume is dog-days. For example, 3 dogs boarded for 4 days plus 1 dog boarded for 6 days yields 18 dog-days of service (and revenue). If the firm expects an annual volume of 8,300 dog-days of boarding, what is the expected after-tax profit? Expected after-tax profit $ LINK TO TEXT If the firm anticipates an annual volume of 7,700 dog-days of boarding, what is the margin of safety in terms of dog-days? (Round answer to o decimal places, e.g. 125.) Margin of safety dog-days LINK TO TEXT The owner believes that an after-tax profit of $105,900 is needed to justify being in business. How many dog-days are required to meet this goal? (Round answer to o decimal places, e.g. 125.) Dog-days required dog-days Calculate the percentage increase in dog-days between parts (a) and (c). (Round answer to 1 decimal place, e.g. 15.5%.) Percentage increase %