The following labor standards have been established for a particular product: Standard labor-hours per unit of output Standard labor rate 9.2 hours $13.00 per hour The following data pertain to operations concerning the product for the last month Actual hours worked Actual total labor cost Actual output 7,000 hours $88,200 950 units What is the labor efficiency variance for the month? Multiple Choice $25,420 F $25,420 U $21,924 F $22,620 F O