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Need help in records

Posted: 2017-09-18 20:17
by gatenet
  • Hi there community, i need to know how can i calculate in a table the field of a previous record. For example i have a table that has 3 fields 1 is payment amount the other is charge amount and the 3 is balance. When i add a new record i want to take the balance of the previous record and do the math. Any help please. Thank you