ZEE Systems reported total sales of Rs. 204,000 at a price of Rs. 20 and per unit variable expenses of Rs. 12, for the sales of their single product. Per Unit 'Rs.' Total 'Rs.' Sales (10,200 units) 20 204,000 Variable Expenses 12 122,400 Contribution Margin 8 81,600 Fixed Expenses 100,000 Net Operating Income (18,400) What is the amount of contribution margin if sales volume increase to 10,500 units