How to find fixed costs?

Harris Company manufactures and sells a single product A partlally completed schedule of the company's total and per-unit costs over the relevant range of 38,000 to 58,000 units produced and sold annually is given below: Required: 1. Complete the schedule of the company's total and unit costs. (Do not round Intermedlate calculations. Enter your "Cost per unt" answers rounded to 2 decimal places. Enter your answers rounded to the nearest whole dollar.)