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) $4,493,000 Master Budget (based on budgeted orders for 480,000 units) $4,320,000 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 1,440,000 269,000 674,800 443,500 $2,827,300 $1,665,700 1,440,000 336,000 624,000 456,000 $2,856,000 $1,464,000 628,800 190,000 144,000 $ 962,800 $ 702,900 600,000 190,000 120,000 $ 910,000 $ 554,000 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.) OSAGE, INC. Sales Activity Variance Flexible Budget Master Budget Sales Activity Variance U F $ 0 F S 0 Sales revenue Variable costs: Materials Direct labor Variable overhead Variable marketing and administrative Total variable costs Contribution margin Fixed costs: Manufacturing overhead Marketing Administrative Total fixed costs Operating profits S 0 S 19 0 S 0 S 0 S 0