The master budget at Monroe Manufacturing last period called for sales of 43,500 units at $57 each. The costs were estimated to be $41 variable per unit and $539,000 fixed. During the period, actual production and actual sales were 46,500 units. The selling price was $56 per unit. Variable costs were $43 per unit. Actual fixed costs were $530,000. Required: Prepare a sales activity variance analysis. Note: Indicate the effect of each varlance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select elther option. Sales revenue Less: Variable costs Contribution margin Less: Fixed costs Operating profits Monroe Manufacturing Sales Activity Variance Flexible Budget Sales Activity Variance S 0 Master Budget