The controller of Ivanhoe Industries has collected the following monthly expense data for use in analyzing the cost behaviour of maintenance costs. Month January February March April May June (a1) Total Maintenance Costs $2,400 2,850 3,300 4,010 3,000 4,400 Total Machine Hours 350 Variable cost per machine hour $ 400 550 740 450 750 Determine the variable cost component using the high-low method. (Round answers to 2 decimal places, eg. 2.25.)

The controller of Ivanhoe Industries has collected the following monthly expense data for use in analyzing the cost behaviour of maintenance costs (a1) Determine the variable cost component using the high-low method (Round answers to 2 decinal plocks, es 225 ) Variable cost per machine hour