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Exercise 3-4 (Algo) Underapplied and Overapplied Overhead [LO3-4] Osborn Manulacturing uses a predetermined overhead rate of $19.50 per direct laborthour. This predetermined rate was based on a cost formula that estimates $259,350 of total manufactuting overhead for an estimated activity level of 13,300 direct iabor hours. The company actually incurred $253.000 of manufocturing overhead and 12.800 drect loborhours during the period Required: 1. Determine the amount of underapplied or overapplied manufacturing overnend for the period. 2. Assume that the company's underopplied or overapplied overhead is closed to Cost of Goods Sold. Would the joumsi entry to dispose of the underapplled or overapplied overhead increase or decrease the company's gross margin? By how much