The following information was collected for Davidson, Inc. for their two product lines: Actual sales volume Actual sales mix % Budgeted sales volume Budgeted sales mix % Product A Product B Total 3,000 6,000 50% 3,000 50% 2,320 40% Actual selling price $100 Budgeted selling price $110 Actual variable cost per unit $40 Budgeted variable cost per unit $45 3,480 60% $150 $135 $60 $60 5,800 The total size of the market was expected to be 58,000 units and the actual size of the market was 50,000 units. Using the information above, the market share variance is__?___