Stuart Manufacturing Company established the following standard price and cost data: Sales price $ 8.58 per unit Variable manufacturing cost $ 3.90 per unit Fixed manufacturing cost $ 2,280 total Fixed selling and administrative cost 5 766 total Stuart planned to produce and sell 2,900 units. Actual production and sales amounted to 3,200 units. Assume that the actual sales price is $8.15 per unit and that the actual variable cost is $4.15 per unit. The actual xed manufacturing cost is $2,000, and the actual selling and administrative costs are $725. Required a.&b. Determine the exible budget variances and classify the effect of each variance by selecting favorable (F) or unfavorable (U). Note: Select "None" if there is no effect (i.e., zero variance). Variable manufacturing Contribution margin Fixed manufacturing Fixed selling and administrative cost Net income (loss)