How do I calculate my property’s value after raising the rent?

[Tor Lemhag]

I bought a 2 unit property about a year ago. Now I’ve successfully raised the rent by about 20%. Assuming that I paid a fair market price at the time, how should I calculate the propertie’s value now that it generates a lot more income? If cap rate = net income / property value Then property value = net income/ cap rate Can I assume the cap rate is the same as before and get the new value this way? Thanks