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August's direct material efficiency variance is ____.

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I need assistance with this financial accounting problem using valid financial procedures.

Direct labour cost variance: Northstar Manufacturing produces metal components. It takes 3 hours of direct labor to produce a component. Northstar's standard labor cost is $15 per hour. During August, Northstar produced 8,000 components and used 25,200 hours of direct labor at a total cost of $365,400. What is Northstar's labor rate variance for August?

How much was Kaiser's net sales

Please provide the correct answer to this general accounting problem using accurate calculations.