
The picture provides the aggregate plan of messenger bags produced by Walmart. It is known that the firm uses a chase plan. The firm’s labor cost is $12/unit, hiring cost is $350 per unit of increase, and unit firing cost is $400 per unit of decrease in production. Given this information, what is the number in the cell with the question mark? (Round your answer to the nearest whole number if necessary)
Month\# Forecast\# Net requirement\# Prod. rate\# Labor cost\# Hiring cost Firing cost \begin{tabular}{ccccccc|} \hline & ? & ? & 1,000 & ? & ? & ? \\ Jan & 1,800 & 1,700 & 1,700 & 20,400 & 245,000 & 0 \\ Feb & 2,000 & 2,000 & 2,000 & 24,000 & 105,000 & 0 \\ Mar & 940 & 940 & 940 & 11,280 & 0 & 424,000 \\ Apr & 100 & 100 & 100 & 1,200 & 0 & 336,000 \\ May & 1,500 & 1,500 & 1,500 & ? & 490,000 & 0 \\ \hline \end{tabular}