I. Cost Behavior and Estimation (HP 6) Xavier's manufacturing has the following monthly information for his plant. Employee Manufacturing Hours Overhead January 40,000 $386,550 February 39,000 $367,500 March 39,500 $373,700 April 42,000 $400,600 May 51,000 $469,000 June 48,000 $467,600 Required: Included in the manufacturing overhead is a fixed charge of $20,000 for depreciation. Using the High-Low Method, determine the monthly fixed portion of and variable cost per labor- hour