Winle Corp has a standard cost system and applies overhead based on direct labor hours. The standards for manufacturing overhead are as follow: Standard labor hours per unit of product 1.5 Standard manufacturing overhead cost 20.00 per hour During the current period, Winle worked 1,560 hours to produce 1,200 units. Total actual manufacturing overhead cost was $34,320. What was the manufacturing overhead rate variance for the month? Multiple Choice ( ) $1,680 Unfavorable S160 unravel O 0 S2120 Pwerable $3,120 Favorable o $3.120 Unfavorable $1.680 Favorable