Piper Products sold $406,000$ units during the last period when industry volume totaled $2\mathrm{.}8$ million units. The company originally

expected to sell $442,500$ based on a budgeted market share of $15$ percent. The budgeted selling price was $$13$ per unit. Budgeted

variable costs were $$5$ per unit. Budget fixed costs were $$1,770,000$ 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: 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.