Reconcile a three-person ledger before transferring

Alex paid 120, Bea 30 and Chen 0 in the same currency. All three share every cost equally. A settlement must conserve the total and leave each person with the agreed share.

WORKED EXAMPLE
Alex | 120 − 50 = +70 | Receives 70
Bea | 30 − 50 = −20 | Pays Alex 20
Chen | 0 − 50 = −50 | Pays Alex 50
Conservation check | +70 − 20 − 50 = 0 | Transfers total 70; each ends with a cost of 50

YOUR OWN PLAN
Currency: ___
Included people: ___
Expenses shared by everyone? ___
Paid per person: ___
Total paid: ___
Equal share / whole-cent remainder allocation: ___
Balance per person (paid minus share): ___
Sum of balances must equal zero: ___
Transfers: ___
Unequal / subgroup costs excluded for separate agreement: ___

Method: https://wanderaether.com/guides/split-trip-expenses.html