Required informotion [The following information applies to the questions displayed below]. Preble Company manufactures one product. Its variable manufacturing overthead 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 compary actually produced and sold 30,600 units and incurred the following costs: a. Purchased 170,000 pounds of raw materials at a cost of $900 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 manufocturing overhead for the month was $512.040 4. What is the materials quantity variance for March? Note: Indicete the effect of each variance by selecting "F" for favorable, "U* for unfavorable, and "None" for no effect (i.e., zero varionce.). Input all amounts as positive values