Sunland Company sells its product for $10800 per unit. Variable costs per unit are: manufacturing, $5000; and selling and administrative, $120. Fixed costs are: $33600 manufacturing overhead, and $43600 selling and administrative. There was no beginning inventory at 1/1/20. Production was 24 units per year in 2020-2022. Sales were 24 units in 2020, 20 units in 2021, and 28 units in 2022. Income under variable costing for 2022 is O $81840. O $69360. $74360. $76240.