[Calc Review] I must be doing something wrong

[Jonathan Vargas]

So im here running numbers working my way up to my 100 calculations in 30days challenge got going on but I believe I might be doing something wrong. I did three so far and 2 of the three got practically reverse CoC I find that strange and they are two different properties in different neighborhoods in Jersey city.
Note: i put a round number in for Insurance for now as its late Ill ask around later for a more accurate number and I set CapEx and Vacancy and such @5% is that a conservative number or i should be thinking more?

Here they are

https://www.biggerpockets.com/...

https://www.biggerpockets.com/...

I haven’t done any analysis is three years and i want to make sure im not setting myself up to make 100 “wrong” ones
Any help would be much appreciated.