Suppose you are the Manager of Training & Development at Corel. You have been asked by a number of managers to run a training course in emergent web technologies for junior staff. At least 10, and possibly as many as 25, employees will attend. You have contracted with an experienced educator to deliver the program for a fee of $3,000, and you will incur another $1,000 for materials and room rental. You will also be expected to provide refreshments and meals at a cost of $100 per participant. The course fee will be $500. What is the break-even number of participants?