The mawer budget at Monroe Manufocturing last penod caleo for sales of 42,900 units at $51 eoch. The costs were estimated to be $35 vanabie per unt and $533,000 fied. Dunting the seriod, actual production and actual sales were 45,900 units. The selling price was $50 per unit Variable costs were $37 per unit Actuol fored costs were $524,000 Requlred: Prepare a sales activity variance analysit Note: Indicate the effect of each variance by selecting "F" for fovornble, or "U" for unfovoreble. If there is no effect, do not select either option