Campbell Publications established the following standard price and costs for a hardcover picture book that the company produces. Standard price and variable costs Sales price Materials cost Labor cost Overhead cost Selling, general, and administrative costs S 36.80 8.10 4.10 6.30 6.30 Planned fixed costs Manufacturing overhead Selling, general, and administrative $126,000 47,000 Campbell planned to make and sell 22,000 copies of the book. Required a. - d. Prepare the pro forma income statement that would appear in the master budget and also flexible budget income statements, assuming production volumes of 21,000 and 23,000 units. Determine the sales and variable cost volume variances, assuming volume is actually 23,000 units. Indicate whether the variances are favorable (F) or unfavorable (U). (Select "None" if there is no effect (i.e. zero variance).) Master Budget Flexible Budgets 21,000 Volume Variances Number of units Sales revenue Variable manufacturing costs 22,000 23,000 Materials Labor Manufacturing overhead Variable selling general, and administrative costs 0 Fixed costs Manufacturing overhead Fixed selling, general, and administrative costs