Piper Products sold 411,000 units during the last period when industry volume totaled 285 million units. The company onginally expected to sell 447,500 based on a budgeted market share of 15 percent. The budgeted selling price was $15 per unt. Budgeted variable costs were $7 per unit Budget fixed costs were $1,820,000 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 Note: Do not round intermediate calculations. 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