A 1,500 square foot office space is leased at $12.00 square foot per month. The space is vacant one month out of the year. Office expenses are $6.50 per square foot per month and an expense stop is set at $6.00 per square foot per month. What is the monthly net operating income?

Group of answer choices

$8,232

$15,750

$6,750

$7,437