EX 18-21 0B1. 4 Decision making Instant Pix Inc, prod processes for this operation is a coating (solvent spreading) ope are coated on to paper stock. There has been some of this operation. As a result, you have begun an investigation. You first discover materials and conversion prices have been stable for the last six months. hus in prices for inputs are not an explanation for increasing costs. However, you ered three possible problems from some of the operating personnel whose quotes toll uces photographic paper for printing digital images. One of the ration, where chemicals concern about the cost performance have discov- 1: Tve been keeping an eye on my operating room instruments. I feel as though our energy consumption is becoming less efficient. Operator 2 "Every time the coating machine goes down, we produce waste on shutdown and subsequent startup. It seems like during the last half year we have had more unscheduled machine shutdowns than in the past. Thus, I feel as though our yields must be dropping." Operator 3: "My sense is that our coating costs are going up. It seems to me like we are spreading a thicker coating than we should. Perhaps the coating machine needs to be recalibrated." The Coating Department had no beginning or ending inventories for any month during the study period. The following data from the cost of production report are made available: January February MarchAprilMay June 2 Paper stock 3 Coating 4 Conversion cost (incl. energy) 5 Pounds input to the process 6 Pounds transferred out $67,200 $63,840 $60,480 64,512 $57,120 $53,760 $14 400 $16416 $17,280 $20,275 $20,400 $23,040 $48,000 $45,600 $43.200 $46,080 $40,800 $38.400 100,000. 95,000-90,000-96,000| 85.000| 80,000 96,000 91,200 6,40092,160860076,800 Prepare a table showing the paper cost per output pound, coating cost per output pound, conversion cost per output pound, and yield (pounds out/pounds input) for each month. a. b. Interpret your table results