Chibu Corporation is a single product firm with the following cost formula for all of its costs for next year, where X is the number of units sold and Y is total cost: Y = $225,000 + $30X Chibu sells its product for $120 per unit. What would Chibu's total sales dollars have to be next year in order to generate $270,000 of net operating income? $618, 750 $1, 980,000 $1, 080,000 $660,000