38. LO.2 (Cost behavior) PlumView Printers makes stationery sets of 100 percent rag content edged in 24 karat gold. In an average month, the firm produces 80,000 boxes of stationery; each box contains 100 pages of stationery and 80 envelopes. Production costs are incurred for paper, ink, glue, and boxes. The company manufactures this prod- uct in batches of 500 boxes of a specific stationery design. The following data have been extracted from the company's accounting records for June 2010: Cost of paper for each batch Cost of ink and glue for each batch $10,000 1,000 Cost of 1,000 gold boxes for each batch 32,000 16,000 20,000 Direct labor for producing each batch Cost of designing each batch Overhead charges total $408,000 per month and are considered fully fixed for purposes of cost estimation. a. What is the cost per box of stationery based on average production volume? b. If sales volume increases to 120,000 boxes per month, what will be the cost per box (assuming that cost behavior patterns remain the same as in June)? c. If sales volume increases to 120,000 boxes per month but the firm does not want the cost per box to exceed its current level [based on part (a)], what amount can the company pay for design costs, assuming all other costs are the same as June levels? d. Assume that Plum View Printers is now able to sell, on average, each box of stationery at a price of $195. If the company is able to increase its volume to 120,000 boxes per month, what sales price per box will generate the same per-unit gross margin that the firm is now achieving on 80,000 boxes per month? e. Would it be possible to lower total costs by producing more boxes per batch, even if the total volume of 80,000 is maintained? Explain.