Typically people will use a “Joker / Bingo”. The bingo will be calculated based off of expected furthest distance from home, plus additionally padding for weather, or other contingencies, as the lead sees fit. It is usually not a fuel state that gets you on deck exactly at the minimum amount. Usually there’s some extra. Once Bingo is calculated, Joker is almost always set at 2000 pounds above that. Once Joker is hit, a flight member will call it out and the lead will instruct to reset bingo on the IFEI. This is all for land based operations. It is not the same for the ship.