Appoline Juices budgeted sales of 87,180 units of Grape, assuming that the company would have 30 percent of 290,600 units sold in a particular market. The actual results were 78,390 units sold by Appoline, which represented a 26 percent share of the total market. The budgeted contribution margin is $11.00 per unit. Required: Compute the sales activity variance, and break it down into market share variance and the industry volume variance, Note: Indicate the effect of each variance by selecting "F" for favorable, or " U " for unfavorable. If there is no effect, do not select either option