Answer:
NOI = $25,851
Step-by-step explanation:
To calculate the net operating income (NOI) of the 4-unit property we can use the following formula:
NOI = annual gross income - vacancy and collection loss - operating expenses
(excluding depreciation)
Annual gross income = (2 x $900 x 12) + (2 x $1,200 x 12) = $21,600 + $28,800 = $50,400
vacancy and collection loss rate = $50,400 x 6% = $3,024
operating expenses = $21,525
NOI = $50,400 - $3,024 - $21,525 = $25,851