Nifty Nail Salon Limited is trying to determine the standard labour cost of a manicure. The following data has been collected after analyzing one month's work:

actual time spent on a manicure 1hour; hourly wage rate $13; payroll taxes 7% of wage rate; set-up and downtime 6% of actual labour time; cleanup and rest periods 16% of actual labour time.

If a manicure took 1 hour at the standard hourly rate, what is the direct labour quantity variance on that one manicure?(Round answer to 2 decimal places, e.g. 15.25.)

What's the calculation here??