A tile manufacturer has supplied the following data: Boxes of tile produced and

A tile manufacturer has supplied the following data: Boxes of tile produced and sold 625000 Sales revenue $2975000 Variable manufacturing expense $1720000 Fixed manufacturing expense $790000 Variable selling and admin expense $152000 Fixed selling and admin expense $133000 Net operating income $180000 Required: a. Calculate the companys unit contribution margin. b. Calculate the companys contribution margin ratio. c. If the company increases its unit sales volume by 5% without increasing its fixed expenses what would the companys net operating income be?