Just need a real quick check on my analysis PLEASE : )

[Graham Armstrong]

I think I am able to do numbers for homes, however, I get the terminology really confused so id like to just double check that this is correct.

Thanks so much

( note that I'm taking 30% for expenses to be safe )
$199,900 / 4 units,  3 x2 bedroom & 1 x1 bedroom / Total rent: $2310
$2310 x 12 = $27,720 - expenses (30%) = $19,404 ( This is the NOI, Correct?? )

$19,404  divided by  $199,900 = 9.7% ( Cap-Rate, correct?? )

$19,404 divided by  $ 39,980 ( 20% down payment ) = 4.85% ( cash on cash, correct ?? )

Thanks for taking a look