Corporation based it's predetermined overhead rate on estimating machine hours for the upcoming year at the beginning of the most recent completed year the corporation estimated the machine hours for the upcoming year at 45,900 machine hours estimated variable manufacturing overhead was $7.53 per machine and the estimated fixed manufacturing overhead was $1,000,290 and 78. The predetermined overhead rate for the recently completed year was3565 per hour 3465 per machine hour $7.53 per machine hour 2812 per machine hour looking for predetermined