Olive Tree Products sold 72,000 units during the last period when industry volume totaled 320,000 units. The company originally expected to sell 75,000 based on a budgeted market share of 20 percent. The budgeted selling price was $45 per unit. Budgeted variable costs were $20 per unit. Budgeted fixed costs were $300,000 and applied based on units produced. Required: Compute the sales activity variance, and break it down into market share variance and the industry volume variance. (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.)