Contribution Margin Analysis-Variable Costs The following data for Romero Products Inc. are available: For the Year Ended December 31 Sales Actual $1,877,400 Planned $1,790,100 Difference- Increase or (Decrease) $87,300 Variable costs: $49,700 Variable cost of goods sold Variable selling and administrative expenses Total variable costs $998,300 193,700 $1,192,000 $685,400 14,900 $948,600 214,200 $1,162,800 $627,300 15,300 (20,500) $29,200 $58,100 Contribution margin Number of units sold Per unit: Sales price Variable cost of goods sold Variable selling and administrative expenses $126 67 13 $117 62 14 Prepare a contribution margin analysis of the variable costs for Romero Products Inc. for the year ended December 31. Romero Products Inc. Contribution Margin Analysis-Variable Costs For the Year Ended December 31 Effect of changes in variable costs of goods sold: Variable cost quantity factor Unit cost factor Total effect of change in variable cost of goods sold Effect of changes in variable selling and administrative expenses: Variable cost quantity factor Unit cost factor Total effect of changes in selling and administrative expenses Decrease in contribution margin from change in variable costs