Todrick Company is a merchandiser that reported the following information based on $1,000$ units sold:

Sales $ $255,000$

Beginning merchandise inventory $ $17,000$

Purchases $ $170,000$

Ending merchandise inventory $ $8,500$

Fixed selling expense $?$question mark

Fixed administrative expense $ $10,200$

Variable selling expense $ $12,750$

Variable administrative expense $?$question mark

Contribution margin $ $51,000$

Net operating income $ $15,300$

Required:

Prepare a contribution format income statement.

Prepare a traditional format income statement.

Calculate the selling price per unit.

Calculate the variable cost per unit.

Calculate the contribution margin per unit.

What is the income statement format $($traditional format or contribution format$)$ would be more useful to managers in estimating how net operating income will change in response to changes in unit sales?