On the CVP graph, the next unit sold will increase profit by an amount equal to the Select one: a. Variable costs per unit b. Difference between contribution margin and fixed costs c. Contribution margin ratio d. Selling price per unit minus the variable costs per unit e. Selling price per unit Which one of the following cost estimation methods is the most accurate? Select one: a. Scattergraph b. The high-low method. c. Regression analysis. d. Subjective forecasting