The Ivanhoe Inn is trying to determine its break-even point. The inn has 75 rooms available that are rented at $90 a night. Operating costs are as follows: Salaries $20,460 per month Maintenance $490 per month Utilities $1,980 per month Housekeeping service Depreciation $1,910 per month Other costs $8 per room $46 per room (a) Your Answer Correct Answer Your answer is correct. Determine the inn's break-even point in the number of rented rooms per month and dollars. 690 rooms Break-even point Break-even point $ 62100 (b) If the inn plans on renting 25 rooms per day (assuming a 30-day month), what is the monthly margin of safety in dollars and the margin of safety ratio? Monthly margin of safety $ Margin of safety ratio %