1 pts Question 16 In 2020 Arbor Corporation produced 40,000 products at a cost of $10 per unit produced. Variable costs were 20% of the total cost of each unit. In 2021, Arbor will add an environmental safety component that will increase variable costs by $1 per unit. Assuming Arbor's sales remain the same, which of the following is NOT true? Fixed costs will represent a lower percentage of the total cost in 2021. Variable costs per unit will increase to $3 per unit: The contribution margin percentage will decrease. The fixed cost applied to each unit will not change. All of the above are true