A catering company needs to prepare 50 lunch boxes for an event. Each lunch box contains a sandwich costing $3, a drink costing $2, and a fruit costing $1. The company also incurs a packaging cost of $0.50 per lunch box. If the company charges $10 for each lunch box, how much profit does the company make in total from this event? Let's think step by step and output the final answer within \boxed{}.
user