Riverside Incorporated makes one model of wooden canoe. Partial information for it follows:

$\backslash$table$[[$Number of Canoes Produced and Sold,$550,750,900],[$Total costs$],[$Variable costs,$ $107,250,$$ $146,250,$$ $175,500],[$Fixed costs,$247,500,247,500,247,500],[$Total costs,$ $354,750,$$ $393,750,$$ $423,000],[$Cost per unit$],[$Variable cost per unit,$ $195\mathrm{.}00,$$ $195\mathrm{.}00,$$ $195\mathrm{.}00],[$fixed cost per unit,$450\mathrm{.}00,330\mathrm{.}00,275\mathrm{.}00],[$Total cost per unit,$ $645\mathrm{.}00,$$$525\mathrm{.}00,$$$470\mathrm{.}00$