Lean Accounting The annual budgeted conversion costs for a lean cell are $201,600 for 2,800 production hours. Each unit produced by the cell requires 9 minutes of cell process time. During the month, 1,650 units are manufactured in the cell. The estimated materials costs are $55 per unit. (Round the per unit cost to the nearest cent and use in subsequent computations. If required, round your answers to the nearest dollar.) Journalize the following entries for the month: a. Materials are purchased to produce 1,740 units. b. Conversion costs are applied to 1,650 units of production. c. The cell completes 1,570 units, which are placed into finished goods. If an amount box does not require an entry, leave it blank.. a.