This document discusses break even analysis for a company. It defines break even point as when total revenue equals total cost. It provides formulas for linear cost, revenue, and profit functions. As an example, it calculates that a company making calculators must sell 20,000 units to break even based on a unit variable cost of Rs.225, fixed cost of Rs.25,00,000, and selling price of Rs.350 per unit. It concludes that selling more than 20,000 units would result in profit while less would result in a loss. It also provides a practice problem to determine the break even point for a product sold at Rs.450 per unit with variable cost of Rs.330 and fixed cost of Rs.