Exercise 3-4 Underapplied and Overapplied Overhead (L03-4) Osborn Manufacturing uses a predetermined overhead rate of $19.80 per direct labor-hour. This predetermined rate was based on a cost formula that estimates $269,280 of total manufacturing overhead for an estimated activity level of 13,600 direct labor hours. The company actually incurred $265,000 of manufacturing overhead and 13,100 direct labor-hours during the period. Required: 1. Determine the amount of underapplied or overapplied monufocturing overhead for the period, 2. Assume that the company's underopplied or overapplied overhead is closed to cost of Goods Sold. Would the journal entry to dispose of the underapplied or overopplied overhead increase or decrease the company's gross margin? By how much? 1. Manufacturing overhead 2 The gross margin would by by