In 2016, Sunland sold 1000 units at $500 each, and earned net income of $40000. Variable expenses were $400 per unit, and fixed expenses were $230000. The same selling price is expected for 2017, Sunland's variable cost per unit will rise by 10% in 2017 due to increasing material costs, so they are tentatively planning to cut fixed costs by $10000. How many units must Sunland sell in 2017 to maintain the same income level as 2016? 1000 2166 4333 2889