In 2019, Swifty sold 1000 units at $700 each, and earned net income of $90000. Variable expenses were $420 per unit, and fixed expenses were $190000. The same selling price is expected for 2020, Swifty's variable cost per unit will rise by 10% in 2020 due to increasing material costs, so they are tentatively planning to cut fixed costs by $10000 How many units must Swifty sell in 2020 to maintain the same income level as 2019? 756 1071 1000 1134