Sawaya Co., Ltd., of Japan is a manufacturing company whose total factory overhead costs fluctuate considerably from year to year according to increases and decreases in the number of direct labor-hours worked in the factory. Total factory overhead costs (in Japanese yen, denoted ) at high and low levels of activity for recent years are given below: Level of Activity Low High Direct labor-hours 58,500 78,000 Total factory overhead costs 281,350 322,300 The factory overhead costs above consist of indirect materials, rent, and maintenance. The company has analyzed these costs at the 58,500-hour level of activity as follows: Indirect materials (variable) 87,750 Rent (fixed) 124,000 Maintenance (mixed) 69,600 Total factory overhead costs 281,350 To have data available for planning, the company wants to break down the maintenance cost into its variable and fixed cost elements. Requirement 1: Estimate how much of the 322,300 factory overhead cost 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 322,300 consists of indirect materials and rent. Think about the behaviour of variable and fixed costs!)