I keep this last question wrong and i dont know why

The June 1 work in process inventory consisted of 5,600 units with $21,270 in materials cost and $18,730 in conversion cost. The June 1 work in process inventory was 100% complete with respect to materials and 60% complete with respect to conversion. During June, 38,100 units were started into production. The June 30 work in process inventory consisted of 9,200 units that were 100% complete with respect to materials and 50% complete with respect to conversion. Foundational 5-15 (Algo) 15-a. What is the total cost to be accounted for? 15-b. What is the total cost accounted for? Answer is complete but not entirely correct