Required information The Foundational 15 (Algo) [LO10-1, LO10-2, LO10-3] [The following information applies to the questions displayed below.] Preble Company manufactures one product. Its variable manufacturing overhead is applied to production based on direct labor-hours and its standard cost card per unit is as follows: The planning budget for March was based on producing and selling 21,000 units. However, during March the company actually produced and sold 26,600 units and incurred the following costs: a. Purchased 154,000 pounds of raw materials at a cost of $9.50 per pound. All of this material was used in production. b. Direct laborers worked 63,000 hours at a rate of $13 per hour. c. Total variable manufacturing overhead for the month was $510,930. oundational 10-9 (Algo) 9. What is the labor rate variance for March? Note: Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance.). Input all amounts as positive values