Finch Computer Services, Inc. has been in business for six months. The following are basic operating data for that period Month July 114 Aug. Sept Oct. Nov. Dec. Service hours Revenue Operating costs 328 $6,270 $7,370 $14,190 $23,540 $17,600 $18,040 $4,260 $5,280 7,170 $11,170 9,150 $10,550 134 258 428 320 Required a. What is the average service revenue per hour in each month and the overall average for the six-month period? b. Use the high-low method to estimate the total monthly fixed cost and the variable cost per hour c. Determine the average contribution margin per hour. Complete this question by entering your answers in the tabs below. Required A Required B Required C What is the average service revenue per hour in each month and the overall average for the six-month period? Month July Aug Sept. Oct. Nov Dec. Total Average Average service revenue per hour Month July 114 Sept. 258 Aug. Oct. Nov. Dec. Service hours Revenue Operating costs 328 $6,270 $7,370 $14,190 $23,540 $17,600 $18,040 $4,260 $5,280 7,170 $11,170 9,150 $10,550 134 428 320 Required a. What is the average service revenue per hour in each month and the overall average for the six-month period? b. Use the high-low method to estimate the total monthly fixed cost and the variable cost per hour. c. Determine the average contribution margin per hour. Complete this question by entering your answers in the tabs below Required A Required B Required C Use the high-low method to estimate the total monthly fixed cost and the variable cost per hour. (Do not round intermediate calculations. Round "Variable cost" to 2 decimal places.) Variable cost per hour Fixed cost per month