Reena has just started her business of selling cosmetic article at Rs. 200 each, the variable cost of purchase, etc. of which is Rs.120. The fixed costs are Rs. 80,000 per month. You are required to (a) Prepare a statement showing profit or loss if monthly sales are 500 units, 1000 units, 3000 units. Determine the profit margin at each level and give a brief analysis of the results obtained.