Want to Split Column using a delimiter starting from end of string

[NagendraThakur]

I am having a problem trying to figure out how to get the last part of the string on passing the comma delimiter 
I just want the country name from this column. 

[MilindG]

There probably is a simpler way but here is how I got it.

[binu_acs · Accepted solution]

@NagendraThakur One way of doing this with the Regex Replace function