Yang's standard labor cost of producing one unit of Product One is 1.7 hours at a rate of $10.2 per hour. During September, 1,573 hours were incurred at a cost of $12.9 per hour to produce 1,312 units of Product One. Yang's direct labor efficiency variance is $ Indicate the amount and whether it is Favorable or Unfavorable by placing For 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