Greys standard labor cost of producing one unit of Product A1 is 1.5 hours at a rate of $10.1 per hour. During August, 1546 hours were incurred at a cost of $12.2 per hour to produce 1109 units of Product A1.

Greys direct labor efficiency variance is $__________

Indicate the amount and whether it is Favorable or Unfavorable by placing F or U by amount, do not skip a space and do not use $ in your answer. For example, if your answer is $1,000 favorable, answer 1000F How do you know the answer is favorable?