A firm produces 500 lawnmowers per week. It hires 20 full-time workers (40 hours/week) at an hourly wage of $15. Raw materials are ordered weekly and they costs $50 for every unit produced. The weekly cost of the rent payment for the factory is $2,250. How do the overall costs break down?

The same firm produces 500 lawnmowers per week. It hires 20 full-time workers (40 hours/week) at an hourly wage of $15. Raw materials are ordered weekly and they costs $50 for every unit produced. The weekly cost of the rent payment for the factory is $2,250. Lawnmowers sell for $100. What is the average total cost and the profit margin?