how do i calculate

Question 5 Os pes Price is $5 per unit. At current sales volume, variable costs are $3 per unit, fixed costs are $4 per unit, and unit costs (total costs per unit) are $3+$4=$7 per unit. If we sell 100 more units (which is in the relevant range), profit will increase by $100 increase by $500 decrease by $200 Correct! increase by $200