Ironwood Company manufactures cast-iron barbeque cookware. During a recent windstorm, it lost some of its cost accounting records. Ironwood has managed to reconstruct portions of its standard cost system database but is still missing a few pleces of information. Required: Use the information in the table to determine the unknown amounts. You may assume that ironwood does not keep any raw material on hand. Note: Indicate the effect of each variance by selecting "F" for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance)