Nautical Footwear Incorporated manufactures women's boating shoes. Manufacturing overhead is assigned to production on a machine-hour basis. For 2022, it was estimated that manufacturing overhead would total $367,910 and that 21,640 machine hours would be used. Required: a. Calculate the predetermined overhead application rate that will be used for absorption costing purposes during 2022. Note: Round your answer to 2 decimal places. b. During May, 3,100 pairs of shoes were made. Raw materials costing $6,950 were used, and direct labor costs totaled $9,420. A tota of 730 machine hours were worked during the month of May. Calculate the cost per pair of shoes made during May. Note: Do not round intermediate calculations. Round your answer to 2 decimal places. c. At the end of May, 1,290 pairs of shoes were in ending inventory. Calculate the cost of the ending inventory and the cost of the shoes sold during May. Note: Do not round intermediate calculations. Round your answers to 2 decimal places