Problem 15-20A (Algo) Determining sales and variable cost volume variances LO 152,153,154 Solomon Publications established the following standard price and costs for a hardcover picture book that the company produces. Solomon planned to make and sell 27,000 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 26,000 and 28,000 units. Determine the sales and variable cost volume variances, assuming volume is actually 28,000 units. Indicate whether the variances are favorable (F) or unfavorable (U). (Select "None" if there is no effect (i.e., zero variance).) Solomon planned to make and sell 27,000 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 26,000 and 28,000 units. Determine the sales and variable cost volume variances, assuming volume is actually 28,000 units. Indicate whether the variances are favorable (F) or unfavorable (U). (Select "None" if there is no effect (l.e., zero variance).)