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 (.e., zero variance).) Item Budget Actual Variance Effect GA Sales price Sales revenue 658 $ 529 $ 584,000 $ 391,000 $ 279,000 $ 186,000 $ 608,000 $364,000 $ 286,000 $ 182,000 990 units Cost of goods sold Material purchases at 5,000 pounds Materials usage Production volume Wages at 4,000 hours Labor usage at $16 per hour Research and development expense Selling and administrative expenses 920 units units $ 60,800 $ 96,400 $ 59,100 $ 97,800 $ 26,000 $ 31,000 $ 55,000 $ 44,000