The Following Are Monthly Totals Taken from the Log of a Color

Essay

The following are monthly totals taken from the log of a color photocopying machine used by the Kinlo's Printing Company. Cost was based on a flat fee plus a declining cost per copy made after a minimum number of copies had been made each month.
To differentiate the variable and fixed costs in the use of this machine for future planning, use the high-low method to (a) determine the variable cost per copy and (b) compute the fixed and variable costs for the months of February and June.