In 2022, Vaughn sold 1000 units at $500 each and earned net income of $40000. Unit variable cost was $400 and fixed expenses totaled $170000. The same selling price is expected for 2023. Vaughn's unit variable cost will rise by 10% in 2023 due to increasing material costs so they are tentatively planning to cut fixed costs by $10000. If the company is successful in cutting fixed costs by $10000, how many units must Vaughn sell in 2023 to maintain the same income level as 2022? O 1000 O 3333 O 1667 O2222