Stuart Publications established the following standard price and costs for a hardcover picture book that the company produces: Stuart planned to make and sell 26,000 copies of the book Required: a. to d. Prepare the pro forma income statement that would appear in the master budget and also flexible buiget income statements assuming production volumes of 25,000 and 27,000 units. Determine the sales and varlable cost volume variances, assuming volume is actually 27,000 units. Indicate whether the variances are favorable or unfavorable. Note: Select "None" if there is no effect (i.e., zero variance)