Problem 15-20A (Algo) Determining sales and variable cost volume variances LO 15-2, 15-3, 15-4 Campbell Publications established the following standard pice and costs for a hardcover picture book that the company produces. Campbell planned to make and sell 39.000 coples of the book. Required: a. - d. Prepare the pro forma income statement that would appeat in the master budget and atso liexible budget income statements. assuming production volumes of 38.000 and 40.000 units. Determinl the sales and variable cost volume varlances, assuming volume is actually 40.000 units, Indicate whether the variances are favorable (f) or unfavorable (U). (Select "None" if there is no effect (l.e. zero variance).) 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 38,000 and 40,000 units. Determine the sales and varlable cost volume varlances, assuming volume is actually 40,000 units. Indicate whether the variances are favorable (F) or unfavorable (U). (Select "None" if there is no effect (i.e., zero variance).)