The following data are available for the most recent year of operations for Slacker & Sons. The revenue portion of the sales activity variance is $336,000 F. Master budget based on actual sales of 167,000 units: Revenue Materials Labor Variable manufacturing overhead and administrative costs Fixed manufacturing overhead and administrative costs $4,200,000 867,000 642,000 142,000 470,000 Required: a. How many units were actually sold in the most recent period? b. Prepare a sales activity variance for the most recent year for Slacker & Sons. Answer is not complete. Complete this question by entering your answers in the tabs below. Required A Required B How many units were actually sold in the most recent period? (Do not round intermediate calculations.) Actual sales 180,429 units Required A Required B > Prepare a sales activity variance for the most recent year for Slacker & Sons. (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.) SLACKER & SONS Sales Activity Variance Flexible Budget Sales Activity Variance Master Budget Sales revenue Variable costs: Materials Direct labor Variable manufacturing and administrative Total variable costs Contribution margin Fixed costs: Manufacturing overhead and administrative Total fixed costs Operating profits Required A Required B )