Required Compute variances for the following items and indicate the effect of each variance by selecting favorable (F) or unfavorable (U). (Select "None" if there is no effect (i.e., zero variance).) Variance 10 Effect U $ Book Actual s 526 $ 602,000 $361,000 $ 281,500 F Terences Item Budget Sales price $ 652 Sales revenue $ 581,000 Cost of goods sold $ 386,500 Material purchases at 5,000 pounds $ 276.000 Materials usage $ 181,500 Production volume 960 units Wages at 4,000 hours $ 60,200 Labor usage at $16 per hour $ 96 100 Research and development expense $ 23,000 Selling and administrative expenses $50.500 $ 179,000 905 units units U 2 S 58 800 97 200 $ $ U U 26,500 $ 41.000