Required information (The following information applies to the questions displayed below. Preble Company manufactures one product. Its variable manufactuing overhead is applied to production based on direct labour-hours, and its standard costs per unit are as follows: The company planned to produce and sell 21,000 units in March. However, during March the company actually produced and sold 26.600 units and incurred the following costs. a. Puichased 154.000kg of raw materials at a cost of $9.50 per kg. All of thes material was usied in production. b. Direct labour 63.000 hours at a rate of $13 per houk. c. Total variable manufacturing ovethead for the month was $510930. What is the materials quantity vailance for March? (indicate the effect of ench variance by solecting "E" for fovorobie. "U\% for unfavoroble, and "None" for no effect (i.e., zero variance.)