Sambell Manufacturing uses a predetermined manufacturing overhead rate to allocate overhead to individual jobs. At the beginning of the year, the company expected to incur the following:

$\backslash$table$[[$Manufacturing overhead costs,$$280,000.$ Required: $1.$ Compute sambell's indirect cost allocation rate based on labour cost. $2.$ Compute sambells indirect cost allocation rate based on machine hours $.3.$ How much overhead was allocated during the year if the allocation base was direct labour cost? $4.$ How much manufacturing overhead was incurred during the year?