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Stuart Publications established the following standard price and costs for a hardcover picture book that the company produces. Assume that Stuart actually produced and sold 32,000 books. The actual sales price and costs incurred follow: Required a. \& b. Determine the flexible budget variances and also Indicate whether each variance is favorable (F) or unfavorable (U) (Select "None" if there is no effect (i.e., zero variance).) Required a. \& b. Determine the flexible budget variances and also Indicate whether each variance is favorable (F) or unfavorable (U). (Select "None" if there is no effect (i.e., zero variance).)