Which of the following is not an underlying assumption of cost-volume-profit analysis? Multiple Choice Variable cost per unit is constant within the relevant range, Total fixed cost varies inversely with changes in the level of activity In multiproduct companies, the mix of products sold remains constant Selling price is constant Which of the following is not an underlying assumption of cost-volume-profit analysis? Multiple Choice Selling price is constant Variable costs per unit are constant Net operating income is constant. Total fixed costs are constant within the relevant range. Which of the following is not an underlying assumption of cost-volume-profit analysis? Multiple Choice In multiproduct companies, the mix of products sold remains constant. Variable cost per unit varies inversely with changes in the level of activity. Selling price is constant. O Total fixed costs are constant within the relevant range