The following information has been made available to you by Custom Printers, Inc.: Actual manufacturing overhead Estimated manufacturing overhead Actual machine hours Estimated machine hours Required: a) Compute the manufacturing overhead rate $30,725 $31,660 6,740 6,800 b) Compute the manufacturing overhead applied c) State whether the amount posted to the WIP account was over or under-applied for manufacturing overhead and also state the dollar amount. d) Indicate whether cost of goods sold should be increased or decreased in order to adjust the balance to actual costs (based on your answer in part (c).