Question 25 (4 points) Starbucks's standard cost for labor includes 4 hours of labor per unit, at $15 per hour. In producing 2,000 units, Starbucks used 7,900 hours of labor amounting to a total labor cost of $116,920. Starbucks' labor price variance is O $1,500 F. $1,580 U. $1,500 U. $1,580 F