Time LimLU.JU.00 Question 1 (1 point) Contribution margin 1) is always the same as gross profit margin. O 2) excludes variable selling costs from its calculation. 3) is calculated by subtracting total manufacturing costs per unit from sales revenue per unit. 4) equals sales revenue minus variable costs. Question 2 (1 point) Contribution margin is 1) the amount of revenue remaining after deducting fixed costs. O2) available to cover fixed costs and contribute to income for the company. 3) sales less fixed costs. 4) unit selling price less unit fixed costs. Question 3 (1 point) The relevant range of activity refers to the