I include a 20% margin in the rehab cost so multiply the estimate by 1.2.

If you occupy unit 2, your gross rent is $1,325 and multiply by 30% and that's $397.5 in additional expenses.

It multiplies what one person can do alone.

Additional ways to gauge value or whether to sell: cap rates gross rent multipliers comparable sales of similar triplex's fourplexes sales price per unit 1% or 2% rule on comparable properties or alternatives and more...

It is simply a form of Gross Rent Multiplier (GRM) which is a old crude screening tool.

It might be best to take the rent multiply by twelve, then divide by 26 and then instead of a monthly rental it is every two weeks.

RE math is not difficult, what can be difficult is to know when to divide instead of multiply or how to set up a simple equation, recognize the proper way to set up the math problem.Can you sell ideas, concepts or things?

Even if you only spend 20 minutes looking, multiply that by 3 and there went an hour.

But none of my rental basements are near that size - the biggest is just over 600 sq ft. 10K might be high; measure the perimeter wall lengths and multiply the total by the numbers I supplied earlier to see if your quotes make sense.

Well you can use the 2% rule, or Lindahls Yearly Gross Income divide by 2 then multiply by 10, if you know the area really well you can use GRM * Yearly Gross Income or a Cap Rate Valuation.