Also, what's the recommendation for cash flow percentages?

Cash flow is great, but plan on selling in 3-5 years to trade up into A-class rentals.

It sounds like this is a single family house so although it meets the 1% rule, cash flow will most likely be 0 or negative. 

I used the cash flow formula found  on BP but it seems that the cash flow is small if not negative.

Im 21 years old and currently paying $1400 in rent with my fiancé, I am trying to buy a 4 plex with FHA loan and live in 1 unit, I finally  found one that would cash flow if all units were rented (after running the numbers, average 7% vacancy); leaving me to pay $350 per/M by accupying one unit, it needs some minor maintanence but is livable as is right now.

What are the cash flows on each?

I’m 3 SFH’s into investing and looking to add more cash flow through investing in and out of Nac.

The small mesh size does limit air flow through the screens.

@Michelle Dunn   the easiest way to "calculate" the face value of your investment hold to the  +1% rule  ... meaning if you want to purchase an investment that makes you 1500/m in rent ... it has to cost (aka your turnkey value at purchase) should be less than 120k  thats the only way  you can even begin calculating for cash flow.

In my small unimaginintive  mind, I can only see 70-80k loans to make cash flows.