Help Save & Eat Gilchrist Corporation bases its predetermined overhead rate on the estimated machine-hours for the upcoming year At the beginning of the most recently completed year, the Corporation estimated the machine-hours for the upcoming year at 28.100 machine hours. The estimated variable manufacturing overhead was $4.47 per machine-hour and the estimated total fixed manufacturing overhead was $789.048. The predetermined overhead rate for the recently completed year was closest to O $32.55 per machine-hour O $31.55 per machine-hour O $4.47 per machine-hour O $28.08 per machine-hour