Required information The Foundational 15 (Static) [LO9-1, LO9-2, LO9-4, LO9-5, LO9-6] [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 company also established the following cost formulas for its selling expenses: The planning budget for March was based on producing and selling 25,000 units. However, during March the company actually produced and sold 30,000 units and incurred the following costs: a. Purchased 160,000 pounds of raw materials at a cost of $7.50 per pound. All of this material was used in production. b. Direct-laborers worked 55,000 hours at a rate of $15.00 per hour. c. Total variable manufacturing overhead for the month was $280,500. d. Total advertising, sales salaries and commissions, and shipping expenses were $210,000,$455,000, and $115,000, respectively. 15. What is the spending variance related to shipping expenses? (Indicate the effect of each variance by selecting "F" for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance.). Input the amount as a positive value.)