Patrick Ross, the president of Ross's Wild Game Company, has asked for information about the cost behavior of manufacturing overhead costs. Specifically, he wants to know how much overhead cost is fixed and how much is variable. The following data are the only records available: Month Machine-hours Overhead Costs February 1,700 $20,500 March 2,800 22,250 April 1,000 19,950 May 2,500 21,500 June 3,500 23,950 Using the high-low method, determine the overhead cost equation. Use machine-hours as your cost driver.