The master budget at Monroe Manufacturing last period called for sales of 43,300 units at $55 each. The costs were estimated to be $39 varlable per unit and $537,000 fixed. During the period, actual production and actual sales were 46,300 units. The selling price was $54 per unit. Variable costs were $41 per unit. Actual fixed costs were $528,000. Required: Prepare a sales activity variance analysis. Note: Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select elther option