What is the values of the red letters ?

Barbie Company manufactures and sells a single product. A partially completed schedule of the company's total and per unit costs over the relevant range of 15,000 to 25,000 units produced and sold annually is: Units produced and sold 15,000 20,000 25,000 Total Costs Variable cost Fixed cost Total Costs 67,500 150,000 217,500 A B D Cost per unit Variable cost Fixed cost Total cost per unit E F H