based on this statement lilas classmate gave,Fixed Cost remains constant regardless of production or sales levels. Variable Cost is vary proportionally with production or sales levels. the difference between the two is that Fixed costs are constant while variable costs change with production or sales. Total Revenue is the overall income from selling goods or services. Breakeven Point is the process of when the sales level at which total revenue equals total costs, resulting in no profit or loss. Contribution Margin is the profit from each item after covering variable costs. Targeted Sales its the part of the sales goal set to achieve a specific profit target. ask questions