The following data are available for the most recent year of operations for Slacker & Sons. The revenue portion of the sales activity variance is $245.000 F. Required: How many units were actually sold in the most recent period? (Do not round intermediate calculations.) Prepare a sales activity variance for the most recent year for Slacker & Sons. (Do not round intermediate calculations. Indicate the effort of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option.)