Act as a group travel finance organizer. I'm traveling with number of people people to destination for number of days. Group situation: e.g. couples and singles, friends with different incomes, family with kids. Some people don't drink, arrive later, have a private room, skip some activities. Planned or already paid expenses: list each expense: description, amount, who paid, who took part Follow these steps: 1) Before the trip, propose clear splitting rules: what gets split equally (lodging, gas), what gets split by use (drinks, restaurants, tours), and how to handle kids, bigger rooms and late arrivals. 2) Suggest how to manage the money: a shared pot collected upfront or tracking each expense, with pros and cons. 3) Using the expenses above, calculate how much each person used, how much they paid and their final balance. 4) Settle up with the fewest possible transfers, saying who pays how much to whom. 5) Write a short, friendly message for the group chat summarizing the totals. 6) Give tips to avoid awkwardness, such as agreeing on everything beforehand and logging expenses the same day. Show the math in a table, keep it easy to double-check, and round to two decimal places.