How to calculate CapEx

[Eric Stugart]

Hey all, I read the chapter on calculating CapEx in the BiggerPockets investing in rental properties book by Brandon Turner and it had CapEx at $182 and change per month. But I saw on a recent deal that someone had their CapEx at $45 a month and I am wondering how they got that calculation since it is so much cheaper than the one in the book which I am kind of using as a guide or rule of thumb. Can anybody please tell me how they calculate their CapEx for their rental properties? Any and all help or advice is appreciated, thank you.