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The controller of Hall Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs. Determine the variable-cost components using the high-low method. (Round variable cost to 2 decimal places e.g. 12.25.) Variable cost per machine hour $ Determine the fixed cost components using the high-low method. (Round answer to 0 decimal places e.g. 2,520.) Fixed costs $ eTextbook and Media