Current Attempt in Progress The controller of Blossom Industries has collected the following monthly expense data for use in analyzing the cost behaviour of maintenance costs. Total Maintenance Costs Month Total Machine Hours January $2,700 230 February 3,350 280 March 4,400 430 April 5.870 620 May 3.700 330 June 6.300 630 (21) Determine the variable cost component using the high-low method. (Round answers to 2 decimal places, eg. 2.25.) Variable cost per machine hour $