break even - the point where your total revenue (sales or turnover) equals total costs such that profit is zero
Free Break Even Calculator - Given a fixed cost, variable cost, and revenue function or value, this calculates the break-even point
Free Coupon Comparison Calculator - Given a cost of goods, a dollar off coupon, and a percentage off coupon, this calculator will compare the two deals and determine which one is of more value. If the dollar coupon wins, the calculator will project the break even price where the dollar coupon would surpass the percentage coupon