The Dulac Box plant produces wooden packing boxes to be used in the local seafood industry. Current operations allow the company to make 500 boxes per day, in two 8-hour shifts (250 boxes per shift).There are 6 full-time workers on each shift. The company has introduced some moderate changes in equipment, and conducted appropriate job training, so that production levels have risen to 300 boxes per shift.Also, with these changes there are now 5 full-time workers on each shift.Labor costs average $15 per hour for each worker on each shift. Capital costs were previously $3,000 per day, and rose to $3,500 per day with the equipment modifications.Energy costs at $400 per day before the modification and were reduced by 10% with the modifications.The output is measured in terms of the number of boxes that are produced.