Karen Botosan operates a bed and breakfast hotel in a resort area near Lake Michigan. Depreciation on the hotel is $ 72,296 per year. Karen employs a maintenance person at an annual salary of $ 54,000 and a cleaning person at an annual salary of $ 37,000. Real estate taxes are $ 23,000 per year. The rooms rent at an average price of $ 73,00 per person per night including breakfast. Other costs are laundry and cleaning service at a cost of $ 22.88 per person per night and the cost of food, which is $ 18,00 per person per night (a) Determine the quantity of rentals and the sales revenue Karen needs to break even using the contribution margin technique, Break-even quantity of rentals Break-even sales