Shenandoah Sportswear, Inc. has the following information about units and costs: Number of Units Total Costs October 25,000 $42,805.10 November 22,000 $38,994.20 December 22,500 $41,013.30 January 21,400 $39,904.20 February 26,800 $44,105.40 Using the high-low method, determine the variable cost per unit: Multiple Choice o $0.947 $ 0.778 $1.065 $1.285