Need help understanding this

[Mike Kruser]

Ok so im just look at apartment buildings, here look

Financial Information

* Tax: $8,747.69
* Tax Year: 20
* Total Monthly Income: $5,030
* Total Annual Income: $61,860
* Gross Rental Income: $56,160
* Gross Rent Multiplier: 12
* Net Operating Income: $47,140
* Annual Parking Income: $2,700
* Annual Laundry Income: $3,000

Expense Information

* Total Annual: $13,820
* Total Annual Year: 20
* Electricity: $581
* Fuel: $2,140
* Insurance: $1,371
* Water: $980

Ok Net Operating Income is $47,140 does that mean i still have to still subtract the PITI and Expense from it? Or is $47,140 what I will clear and take in every year?

Thanks,
Mike