Problem $18-1$A $($Algo$)$ Measuring costs using high$-$low method LO P$1[$The following information applies to the questions displayed below.$]$Alden Company's monthly data for the past year follow. Management wants to use these data to predict future variable and fixed costs.Problem $18-1$A $($Algo$)$ Part $1$Fetimate hoth the variahle coste nor unit and the total monthl fixed coste cind the high$-$low method INn not round intermoriate