DO include any Season Passes you bought. DO include any gift card or voucher that has monetary value.
Do NOT include the initial cost of the game. Do NOT include anything you will unlock ingame.
Nothing speculative - Only include stuff you have already bought, or stuff that is confirmed and you will buy as soon as it comes out.
Assume that 1€=$1 and that £1=$1.30, and any other currency conversion factor required.