Find the values of the missing items. Assume that actual sales volume equals actual production volume. (There are no inventory level changes.) (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.) Reported Income Statement Manufacturing (based on Variance actual sales volume) Marketing and Administrative Variance Sales Price Variance Flexible Budget (based on actual sales volume) Sales Activity Variance Master Budget (based on budgeted sales volume) Units 4,000 F 20,000 Sales revenue $ 3,600 F $ 30,000 Less: 19,200 16,000 Variable manufacturing costs Variable marketing and administrative costs Contribution margin 4,320 800 U 4,800 12,000 $ 1,800 U $ $ 10,000 Less: 400 F Fixed manufacturing costs Fixed marketing and administrative costs Operating profit 3,600 3,000 4,000 $ 3,600 F $