Need explanation for each step. thanks

4. The NYCAM Corp. produces a single product using a standard costing system. The standard costs are shown below: Direct Materials (ft.) Direct Labor(per hr.) VMOH(per DLH) Std. Quantity Std. Rate Standard Cost 1.8 $ 3.00 $ 5.40 0.9 $ 18.00 $ 16.20 0.9 $ 5.00 $ 4.50 This month they purchased 25,000 feet of raw materials at a total cost of $78,750. In producing 12,000 units they used 22,400 feet of raw materials. Direct labor hours worked were 11,040 at a total cost of $193,200 and $49,680 worth of Variable MOH was incurred. Find the cost and usage variances for DM, DL, and VMOH. Record the journal entries for DM purchase and usage and for DL costs