In: Accounting
Using activity analysis, AAA Company has identified the
appropriate cost driver for
maintenance costs in a factory as the number of machine hours. The
maintenance costs have been
observed as follows within the relevant range of 5,000 to 8,000
machine-hours.
Month Maintenance Cost Machine Hours
January $7,100 5,600
February $8,500 7,100
March $7,400 5,000
April $8,200 6,500
May $9,950 7,300
June $9,800 8,000
July $7,800 6,200
Using the high-low method, determine the variable maintenance cost
per machine hour and the
monthly fixed maintenance cost. Estimate the total variable
maintenance costs and fixed maintenance
costs if 6250 Machine hours are projected to be used next
month.
Variable cost per hour= (Highest activity cost - Lowest activity cost)/(Highest activity - Lowest activity)
= (9,800-7,400)/(8,000-5,000)
= 2,400/3,000
= 0.8 per hour
Fixed cost = Highest activity cost - Highest activity x Variable cost per hour
= 9,800 - (8,000 x 0.8)
= 9,800-6,400
= $3,400
The estimated month overhead costs when expect the plant to operate at a monthly average of 6,250 machine hours
= Fixed cost + Variable cost per hour x Activity hour
= 3,400 + 0.8 x 6,250
= 3,400+5,000
= $8,400
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