During its most recent fiscal year, Dover, Inc. had total sales of $3, 160,000. Contribution margin amounted to $1, 480,000 and pretax income was $370,000. What amount should have been reported as variable costs in the company's contribution margin income statement for the year in question? $1, 850,000. $2, 790,000. $1, 310,000. $110,000. $1, 680,000