Variance analysis of contribution margin, multiple products; working backward. The Jinwa Corporation sells two brands of wine glasses—Plain and Chic. Jinwa provides the fol¬

lowing information for sales in June 2007:

Static budget total contribution margin $8,400 Budgeted units to be sold of all glasses in June 2007 3,000 units Budgeted contribution margin per unit of Plain $2 per unit Budgeted contribution margin per unit of Chic $6 per unit Total sales quantity variance $1,400 U Actual sales mix percentage of Plain 68%

All variances are to be computed in contribution margin terms Required 1. Calculate die sales quantity variances for each product forJune 2007.
2. Calculate the individual product and total sales mix variances forJune 2007. Calculate the individual product and total sales volume variances forJune 2007.
3. Briefly describe the conclusions you would draw from the variances.