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).) Budget Actual Variance Effect Item Sales price Sales revenue $ 658 $ 529 $ 584,000 $ 608,000 $ 391,000 $ 364,000 $ 279,000 $ 286,000 $ 186,000 990 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 units $ 60,800 $ 96,400 $ 182,000 920 units $ 59,100 $ 97,800 $ 26,000 $ 31,000 $ 55,000 $ 44,000