1 Bitcoin bought in 2015 @ $266.46. What would it be worth today. What are the variable added to it. i.e. Branches, bitcoin gold. etc.

1 Bitcoin bought in 2015 @ $266.46. What would it be worth today. What are the variable added to it. i.e. Branches, bitcoin gold. etc. I understand what the price, per coin is. What I would like to know is, are there other things, $,

added to wallet during different events.