Item$1$

A cement manufacturer has supplied the following data:

Tons of cement produced and sold $268,000$

Sales revenue $ $1,098,800$

Variable manufacturing expense $ $437,000$

Fixed manufacturing expense $ $234,000$

Variable selling and administrative expense $ $99,000$

Fixed selling and administrative expense $ $224,000$

Net operating income $ $104,800$

What is the company's unit contribution margin? $($Round your intermediate calculations to $2$ decimal places.$)$