Fact Pattern: Jackson Co. has the following information for…

Fact Pattern: Jackson Co. has the following information for the first 4 months of this year: Machine Cleaning Hours Expense January 2,100 $   900 February 2,600 1,200 March 1,600    800 April 2,000 1,000 Using the high-low method, what is Jackson’s variable cost of cleaning per machine hour?