The following costs result from the production and sale of $4,650$ drum sets manufactured by Tight Drums Company for the year ended December $31.$ The drum sets sell for $$315$ each.

Variable costs

Plastic for casing

Wages of assembly workers

Drum stands

Sales commissions

Fixed costs

Taxes on factory

Factory maintenance

Factory machinery depreciation

Lease of equipment for sales staff

Accounting staff salaries

Administrative salaries

$$139,500$

$441,750$

$181,350$

$130,200$

$8,500$

$17,000$

$77,000$

$17,000$

$67,000$

$147,000$

Requlred:

Prepare a contribution margin income statement for the year.

Compute contribution margin per unit and contribution margin ratio.

For each dollar of sales, how much is left to cover fixed costs and contribute to income?

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