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Problem

The Lake Shore Inn is trying to determine its break-even point. The inn has 50 rooms that are rented at $60 per night. Operating costs are as follows, in dollars

Salaries      7,200  per month Utilities     1,500  per month Depreciation  1,200  per month Maintenance   300    per month Maid Service  8      per room Other Costs   28     per room 

Determine the inn's break-even point in (1) number of rented rooms per month and (2) dollars.

Progress

I know the general formulas:

  • Break-even point in Units is obtained by dividing Fixed Costs by Contribution Margin per Unit. The latter is (Unit selling price - Unit Variable Costs)
  • Break-even point in Dollars is obtained by dividing Fixed Costs by Contribution Margin Ratio. The latter is (Contribution Margin per Unit / Unit selling price).

However, I cannot figure out the Unit Variable costs. This is is why this problem is so hard for me, even with the formulas.

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    @Arturo: still one extra zero early in the post. But I liked your answer.2011-03-07

1 Answers 1

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Hint: Unit Variable costs are the costs that increase depending on the number of units that are rented, while the costs per month are fixed. The basic idea is that you spend a certain number of dollars to stay open (taxes, mortgage, desk staff) and there are costs that increase per room rented (cleaning rooms). So what would the Contribution Margin per Unit be? It is defined in the first formula.