This is because if the PITI is greater than the Self-Sufficiency Rental Income, then the resulting decimal will be greater than 1.

"You're decimating our community!"

Its rent/purchase amount  convert decimal to % 3400 / 480000 = .007 (percentage in decimal form) x 100 = .7% This is not a true analyzation, but many use this as a reference to determine if its even worth analyzing depending on their criteria.

First, (forgetting the absurdity of the decimal), a vacancy of 1 month means you will have to find out, clear out, list, interview, decide, collect rent, and prep for your next tenant...in 1 month. 

I l know she did all this work but in the process she decimated her numbers by evicting.

My CAPEX and maintenance budgets for a partial year 1 and full year 2 were decimated, leading to a lot of unnecessary stress and painful situations.Set aside that money now, and either be glad you did or thankful that it potentially won't be needed.I'm sure John can help you with those estimates, but this is one semi-newbie investor to another with probably the only advice I'd go back and give myself buying my first true rental that I didn't already think about or know.

Again  NOI/Cap Rate (in decimal form) =Value (based on Income Approach)

.  -- Percentages are just decimals. if you can't agree between 3 & 3.5% don't be afraid to aim for 3%1/3, 3&1/4, etc.

@Jay Hinrichs"my minimum is 6 figures LOL"Is that including decimal places?

What happens if another big employer leaves, would it completely decimate the town?