Wembley Travel Agency specializes in flights between Los Angeles and London. It books passengers on United Airlines at $900 per round-trip ticket. Until last month, United paid Wembley a commission of 10% of the ticket price paid by each passenger. This commission was Wembley’s only source of revenues. Wembley’s fixed costs are $14,000 per month (for salaries, rent, and so on), and its variable costs, such as sales commissions and bonuses, are $20 per ticket purchased for a passenger. United Airlines has just announced a revised payment schedule for all travel agents. It will now pay travel agents a 10% commission per ticket up to a maximum of $50. Any ticket costing more than $500 generates only a $50 commission, regardless of the ticket price. Wembley’s managers are concerned about how United’s new payment schedule will affect its breakeven point and profitability.

1. Under the old 10% commission structure, how many round-trip tickets must Wembley sell each month 

(a) To break even 

(b) To earn an operating income of $7,000 per month?
2. How does United’s revised payment schedule affect your answers to (a) and (b) in requirement 1?