Job costing

I have a question but I cann't calculate with correct answer Ali Co is a jobbing comapny. Budgeted direct labour hours for the current year were 45,000 hours and budgeted direct wages costs were $ 180,000 Job number 12345, a rush job for which overtime had to be worked by skilled employees, had the following production costs. Direct materials $2,000 Direct wages Normal rate (400hrs) $2,000 Overtime premium $500 Production overhaed $4,000 Total $8,500 Production overhaed is based on a direct labour hour rate If production overhaed had been based on a percentage of direct wages costs instead, the production cost of job number 12345 would have been