points Save Answer $125,000+ $1,800* units Your Company sells and installs furnaces for $3,000 per furnace. Its relevant range is 1 to 800 units. The following cost formula relates to its operations: TC- Your Company sold 500 furnaces last year, what was its total contribution margin last year? A S 900,000 2.5 300,000 CS 475,000 D.S 600,000