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Company A estimated total manufacturing overhead cost for the period to be $520,695 and had estimated that the total direct labour hours for the period were going to be 33,060 hours. Compute the predetermined overhead rate and the total costs for the job respectively. $15.75 per hour and $2,765.25 total $20 per hour and $9,545 total $15.75 per hour and $2,756.25 total $20 per hour and $6,045 total