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) $4,966,000 Master Budget (based on budgeted orders for 480,000 units) $4,800,000 Sales revenue Less Variable costs Materials Direct labor Variable overhead Variable marketing and administrative Total variable costs Contribution margin Less Fixed costs Manufacturing overhead Marketing Administrative Total fixed costs Operating profits 1,536,000 246,000 627,800 370,500 $2,780,300 $2,185,700 1,536,000 312,000 576,000 384,000 $2,808,000 $1,992,000 628,900 180,000 136,500 $ 945,400 $1,240,300 600,000 180,000 112,500 $ 892,500 $1,099,500 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.)