Northampton City Tours (NCT) offers personalized historical and architectural tours in a large midwestern city and the local suburbs. NCT charges $372.00 per trip to or from the airport. The variable cost for a tour totals $53.00, for fuel, driver, and so on. The monthly fixed cost for NCT is $17,226.

Required: How many tours must NCT sell every month to break even? NCT's owners believe that 60 tours is a reasonable forecast of the average monthly demand. What is the margin of safety in terms of the number of tours? Note: Round your answer to the nearest whole number.