Echeverria SA is an Argentinian manufacturing company whose total factory overhead costs fluctuate somewhat from year to year according to the number of machine-hours worked in its production facility. These costs (in Argentinian pesos) at high and low levels of activity over recent years are given below:

Level of Activity

Low High

Machine-hours 60,000 80,000

Total factory overhead costs 274,000 pesos 312,000 pesos

The factory overhead costs above consist of indirect materials, rent, and maintenance. The company has analyzed these costs at the 60,000 machine-hours level of activity as follows:

Indirect materials (variable) 90,000 pesos

Rent (fixed) 130,000

Maintenance (mixed) 54,000

Total factory overhead costs 274,000 pesos

For planning purposes, the company wants to break down the maintenance cost into its variable and fixed cost elements.


Estimate how much of the factory overhead cost of 312,000 pesos at the high level of activity consists of maintenance cost. (Hint: To do this, it may be helpful to first determine how much of the 312,000 pesos cost consists of indirect materials and rent. Think about the behavior of variable and fixed costs.)

Maintenance cost ____________ pesos


Using the high-low method, estimate a cost formula for maintenance where X represents the per machine-hour. Round the variable portion of the formula to 2 decimal places.)

Y = ____________ pesos + ____________ peso X


What total overhead costs would you expect the company to incur at an operating level of 65,000 machine-hours?

Total overhead cost ____________ pesos