Dallman Corporation Uses a Job-Order Costing System with a Single

Dallman Corporation uses a job-order costing system with a single plantwide predetermined overhead rate based on machine-hours. The company based its predetermined overhead rate for the current year on 70,000 machine-hours, total fixed manufacturing overhead cost of $287,000, and a variable manufacturing overhead rate of $3.50 per machine-hour.Required:a. Calculate the estimated total manufacturing overhead for the year.b. Calculate the predetermined overhead rate for the year.