Willco Inc. manufactures electronic parts. They are analyzing their monthly maintenance costs to determine the best way to budget these costs in the future. They have collected the following data for the last six months.

Month	Machine Hours	Maintenance Costs
January	106,500	$215,000
February	142,000	261,500
March	131,000	227,400
April	127,400	243,000
May	148,800	261,000
June	124,250	205,600

Using the high-low method and the Willco data, calculate the variable maintenance cost per machine hour (round to three decimal places).