Osage, Inc., manufactures and sells lamps. The company produces only when it receives orders and, therefore, has no inventories. The following information is available for the current month: Actual (based on actual orders for 450,000 units) $4,968,000 Master Budget (based on budgeted orders for 480,000 units) $4,800,000 Sales revenue Less Variable costs Materials Direct labor 1,440,000 1,440,000 276,000 336,000 Variable overhead 674,400 624,000 Variable marketing and 468,000 480,000 administrative Total variable costs $2,858,400 $2,880,000 Contribution margin $2,109,600 $1,920,000 Less Fixed costs Manufacturing overhead 988,800 960,000 Marketing 288,000 288,000 Administrative 204,000 180,000 Total fixed costs $1,480,800 $1,428,000 Operating profits $ 628,800 $ 492,000 Required: Prepare a sales activity variance analysis for Osage, Inc. (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option.) Sales revenue Variable costs: Materials Direct labor Variable overhead OSAGE, INC. Sales Activity Variance Flexible Budget Sales Activity Variance Master Budget Variable marketing and administrative Total variable costs $ 0 $ 0 Contribution margin $ 0 $ 0 Fixed costs: Manufacturing overhead Marketing Administrative Total fixed costs Operating profits $ 0 0 $ 0 $ 0