- Since the IRR is greater than the required rate of return, the proposal should be accepted. 22 Calculate the total equivalent units for materials from the information given below. Percentage complete Units Materials Conversion Work in process, June 1 1,100 60% 35% Units started into production during June 22,500 Units completed and transferred to the next department 21,800 100% 100% Work in process, June 30 1,800 50% 15% A. 2,070 B. 23,400 C. 22,700 D. 21,260