Answer:
[tex]\left[\begin{array}{ccccc}-&units \: cost&V80,000&V100,000&V120,000\\DM&5&400,000&500,000&600,000\\DL&6&480,000&600,000&720,000\\Overhead&8&640,000&800,000&960,000\\Total Variable&19&1,520,000&1,900,000&2,280,000\\Depreciation&200,000&200,000&200,000&200,000\\Supervision&100,000&100,000&100,000&100,000\\Total Fixed&300,000&300,000&300,000&300,000\\Total Overhead&&1,820,000&2,200,000&2,580,000\\\end{array}\right][/tex]
Explanation:
We multiply the variable cost by each volume of production
for example direct materials 5 x 80,000 = 400,000
5 x 100,000 = 500,000
5 x 120,000 = 600,000
Then for the fixed cost:
notice the company expect to produce 1,200,000 units.
If fixed depreciation is $2 per unit then
1,200,000 x $2 = 2,400,000 depreciation per year.
we then divide this value by 12 to get the monthly fixed depreciation
2,400,000/12 = 200,000
Same procedure goes for supervision
1,200,000 units x $1 per unit = 1,200,000 per year
1,200,000/12 = 100,000 per month
Finally we add both, fixed and variable to et total overhead for the relevant range.