the jinwa corporation sells two brands of wine glasses: Plain and Chic. jinwa provides the following information for sales in the month of June 2009: Static -budget total contribution margin $5,600 Budgeted units to be sold of all glasses 2,000 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 $1400 U Actual sales-mix % of Plain 60% All variances are to be computed in contribution -margin terms Required: 1. Calculate the sales-quantity variance for each product for june 2009 2. Calculate the individual-product and total sales mix variances for june 2009. Calculate the individual product and total sales volume variances for June 2009