10 Franklin Computer Services, Inc. has been in business for six months. The following are basic operating data for that period: Month 2 points Service hours Revenue July 110 $5,830 Aug. Sept. 136 Operating costs $7,208 $4,270 $5,200 256 $13,568 $22,472 Oct. 424 Nov. Dec. 316 $16,748 $ 7,160 $11,160 $ 9,160 328 $17,384 $10,550 eBook Print References 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 Determine the average contribution margin per hour. (Round your answer to 2 decimal places.) Average contribution margin per hour < Required B Required C >