In the Marigold, maintenance costs are a mixed cost. At the low level of activity (40 direct labor hours), maintenance costs are $300. At the high level of activity (300 direct labor hours), maintenance costs are $1650. Using the high-low method, what is the variable maintenance cost per unit and the total fixed maintenance cost

Results are below.

Explanation:

To calculate the variable and fixed costs, we need to use the following formulas:

Variable cost per unit= (Highest activity cost - Lowest activity cost)/ (Highest activity units - Lowest activity units)

Variable cost per unit= (1,650 - 300) / (300 - 40)

Variable cost per unit= $5.1923

Fixed costs= Highest activity cost - (Variable cost per unit * HAU)

Fixed costs= 1,650 - (5.1923*300)

Fixed costs= $92.31

Fixed costs= LAC - (Variable cost per unit* LAU)

Fixed costs= 300 - (5.1923*40)

Fixed costs= $92.31

month 1 start amount =$3287.90 interest=(3287.90x0.0145/12)3.97 total to pay=$3291.81 paid =$1200 balance =$2,091.87

month 2 starting amount= $2,091.87 interest =$25.28 total to pay =$2117.15 paid =$1200 balance $917.15

month 3 starting amount =$917.15 interest =$11.08 total to pay =$928.23 paid =$928.23 balance =$0 total to pay 1200+1200+928.23 = $3328.23 it will take 3 months to pay a total of $3328.23

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