The following labor standards have been established for a particular product Standard labor-hours per unit of output Standard labor rate 8.9 hours $15.80 per hour The following data pertain to operations concerning the product for the last month: Actual hours worked Actual total labor cost Actual output 8,800 hours $136,400 870 units What is the labor rate variance for the month? Multiple Choice $2,640 F $14,061 U O O $14,061 F $16,384 U