Knowledge Check 01 With regards to interpreation, what are the important areas that appear on a CVP graph? Excess of variable costs over fixed costs Break-even point, loss area, and profit area Contribution margin Year-to-year sales volumes and dollars Knowledge Check 01 A shift in the sales mix from high-margin items to low-margin items can cause total profit to decrease O increase remain the same Knowledge Check 01 Which of the following methods do managers use to estimate the fixed and variable components of mixed costs by analyzing past records of cost and activity data? scattergraph account analysis least-squares regression