The master budget at Monroe Manufacturing last period called for sales of 42.200 units at $44 each. The costs were estimated to be $28 variable per unit and $526,000 fixed. During the period, actual production and actual sales were 45,200 units. The selling price was $43 per unit Variable costs were $30 per unit. Actual xed costs were $517,000. Required: Prepare a sales activity variance analysis. Note: Indicate the eect of each variance by selecting "F" for favorable. or \"U" for unfavorable. If there Is no effect, do not select either option. Sales mvenue _ mm Contribution margin ' Less mm opera-mm