Required information

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 $2$

Predict future total costs when sales volume is $($a$)388,000$ units and $($b$)428,000$ units.