Break Even Point is the point at which total revenue equals total costs. It is calculated as Total Fixed Costs divided by the difference between Selling Price and Average Variable Cost per unit. BEP analysis determines the sales volume needed to cover fixed and variable costs. Sales above the BEP generate profits, while sales below the BEP result in losses. BEP is used in business decision making, pricing, sales projections, and other areas. It works best under assumptions of linear costs and revenues and constant prices, but has limitations as it ignores market factors and is static.