Classics, Ltd., details cars. Classics wants to compare this quarter's results with those for last quarter, which is believed to be typical for operations. Assume that the following information is provided Last Quarter This Quarter 430 Number of detailings Revenues Variable costs 503 $68,540 27,820 $40,720 $68,600 31,620 $36,980 Contribution margin Required: Compute the flexible budget and sales activity variance and prepare a profit variance analysis. (Hint: Use last quarter as the master budget an this quarter as "actual.") (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.) Variable Cost Variance Flexible Budget Sales Activity Variance Master Budget Actual Sales Price Variance Sales revenue Less Variable Costs Contribution margin