The following labor standards have been established for a particular product: Standard labor-hours per unit of output 8.7 hours Standard labor rate $ 12.50 per hour The following data pertain to operations concerning the product for the last month: Actual hours worked 6,500 hours Actual total labor cost $ 78,650 Actual output 900 units What is the labor efficiency variance for the month? Multiple Choice $19,225 F $19,225 U $16,093 F $16,625 F