E5-17 Estimating Cost Behavior Using High-Low Method, Preparing Contribution Margin Income Statement [LO 5-3, 5-5) Joyce Murphy runs a courier service in downtown Seattle. She charges clients $0.50 per mile driven. Joyce has determined that if she drives 3,300 miles in a month, her total operating cost is $875. If she drives 4,400 miles in a month, her total operating cost is $1,095 Required 1. Using the high-low method, determine Joyce's variable and fixed operating cost components. (Round your cost per unit answer to 2 decimal places.) 215 t for Jovce's service assuming she drove 2.4