Problem 21-1A Measuring costs using high-low method P1 Alden Co, s monthly data for the past yeat follow. Management wants so use these data to prodict filure variable and fiscd costs. Required 1. Estimate boch the variable costs per unit and the total monthly fixed costs using the high-low method. 2. Use the answers for variable and fixed costs froen part 1 to peedict future total eosts whea sales volurse is (a)220,000 units and (b) 240,000 units