Yard Shed Company uses a job-order costing system. The following data were recorded for June: June 1 Added During June Job Number Work in Process Inventory $1,000 $900 Direct Material Direct Labour J12 $400 $200 $800 J34 $600 J56 $800 $900 $1,400 $1,900 J78 $600 $1,100 Manufacturing overhead is charged to production at 70% of the direct materials cost. Jobs J12 and J78 have been delivered to the customer. What was the company's Work in Process inventory balance on June 302 $6.250 $5,200 $6,450 $5,400