Multiple If statements or INDEX MATCH? Im confused.

Greetings,

I have been working on this for days and can not seem to find a solution. I have attached the file as an example. Basically, I am trying to have excel take a value from a cell and if it equals a certain number add the value in the next cell to a another cell. That was probably confusing.

Something like this.

If the value in column F = 2 then take the value in column G and add it to G23.

Please see the example. Any help would be awesome. Thanks.