A cement manufacturer has supplied the following data:

Tons of cement produced and sold

220,000

Sales revenue

$924,000

Variable manufacturing expense

$297,000

Fixed manufacturing expense

$280,000

Variable selling and admin expense

$165,000

Fixed selling and admin expense

$82,000

Net operating income

$100,000

Required:

a. Calculate the company’s unit contribution margin.

b. Calculate the company’s unit contribution ratio.

c. If the company increases its unit sales volume by 5% without increasing its fixed expenses, what would the company’s net operating income be?