Walton Manufacturing Company established the following standard price and cost data: Walton planned to produce and sell 2.500 units. Actual production and sales amounted to 2.700 units. Assume that the actual sales price is $8.70 per unit and that the actual variable cost is $3.55 per unit. The actual fixed marufocturing cost is $2,400, and the actuai selling and administrative costs are $635 Required a.\&b. Determine the flexible budget variances and classify the variances by selecting favorable (F) or unfavorable (M) (Select "None" if there is no effect (i.e., zero varlance).)