Oslo Company prepared the following contribution format income statement based on a sales volume of $1,000$ units $($the relevant range of production is $500$ units to $1,500$ units$)$:

Sales $ $85,000$

Variable expenses $59,500$

Contribution margin $25,500$

Fixed expenses $20,400$

Net operating income $ $5,100$

Required:

$1.$ What is the contribution margin per unit? $($Round your answer to $2$ decimal places.$)$