Are these numbers correct?

[Chris Preone]

So just curious if my number formula is correct 

$15k down plus $15k Reno = $30k 

rental income/year  $14500 

vacancy rate 2% 

operating expensive 35% ( to cover condo fees maintenance insurance ect) 

$5500 a year mortgage 

so roughly a 12.25% cash on cash return ?  Does seem fairly reasonable 🤔 

went high on the Reno estimate and maintenance costs ect and low on the rental amounts.. so hopefully it will work out better..