Required information [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 24,000 units. However, during March the company actually produced and sold 30,600 units and incurred the following costs: a. Purchased 170,000 pounds of raw materials at a cost of $9.00 per pound. All of this material was used in production. b. Direct laborers worked 68,000 hours at a rate of $18 per hour. c. Total variable manufacturing overhead for the month was $512,040. 6. If Preble had purchased 183,000 pounds of materials at $9.00 per pound and used 170,000 pounds in production, what would be the materials quantily variance for March? Note: Indicate the effect of each variance by selecting "F" for faverable, "U" for unfavorable, and "None" for no effect (he., rero variance.). Input all amounts as positive values