The following labor standards have been established for a particular product: Standard labor-hours per unit of output Standard labor rate 1.1 hours 11.60 hours The following data pertain to operations concerning the product for the last month: Actual hours worked Actual total labor cost Actual output 9,400 hours 107,630 8,600 units What is the labor rate variance for the month? 685 F 2106F 1410F 2106U