The controller of Blossom Industries has collected the following monthly expense data for use in analyzing the cost behaviour of maintenance costs: Month Total Maintenance Costs Total Machine Hours January $2,750 2,850 February 3,150 4,400 March 4,000 6,250 April 4,520 8,250 May 3,320 5,000 June 5,693 8,300 (a1) Determine the variable-cost component using the high-low method. (Round answer to 2 decimal places e.g. 12.25.)