Madrigal Theater Company is interested in estimating fixed and variable costs.The following data are available for the month of December:

			Number of Tickets Sold				Cost
December				44,000			$319,380
Detail of Cost:
	Author royalties/fees*						$80,100
	Wages (ticket office, ushers, etc.)**						151,200
	Rent						57,600
	Utilities						6,680
	Depreciationtheater equipment						13,700
	Owners salary						10,100
Total							$319,380

*Author royalties/fees are fixed because the theater pays for the right to put on the play; royalties and fees are not paid based on the number of tickets sold. **Wages are paid based on the number of tickets sold.

A.Use account analysis to estimate

1.fixed cost per month and

2.variable cost per tickets sold

[i.e., estimate a and b in the equation Cost = a + (b Sales)] (Round variable cost per ticket sold to two decimal places, e.g. 15.25.)

B.assume that the selling price per ticket is $20. Based on your answer to part a, what is your estimate of the contribution margin ratio at Madrigal Theater? (Round answer to 4 decimal places, e.g. 0.5212.)