Sherri's Tan-O-Rama is a local tanning salon. Its regression output is as follows: Suppose that the company charges $6.40 per tanning session. Required: 1. Calculate the unit contribution margin. 2. Calculate contribution margin ratio. 3. Calculate the total contribution margin if the shop books 1,150 tanning sessions this month. Complete this question by entering your answers in the tabs below. Calculate the unit contribution margin. (Round your final answer to 2 decimal places.) Sherri's Tan-O-Rama is a local tanning salon. Its regression output is as follows: Suppose that the company charges $6.40 per tanning session. Required: 1. Calculate the unit contribution margin. 2. Calculate contribution margin ratio. 3. Calculate the total contribution margin if the shop books 1,150 tanning sessions this month. Complete this question by entering your answers in the tabs below. Calculate the total contribution margin if the shop books 1,150 tanning sessions this month. (Round contribution margin per unit to 2 decimal places and final answer to the nearest whole dollar.) Sherri's Tan-O-Rama is a local tanning salon. Its regression output is as follows: Suppose that the company charges $6.40 per tanning session. Required: 1. Calculate the unit contribution margin. 2. Calculate contribution margin ratio. 3. Calculate the total contribution margin if the shop books 1,150 tanning sessions this month. Complete this question by entering your answers in the tabs below. Calculate contribution margin ratio. (Round your contribution margin ratio percentage to 2 decimal places (i.e. .1234 should be entered as 12.34%.))