Im having problems understanding Access. Attached is the database I am currently working on. What im trying to figure out is how do I get Access to automatically subtract an amount from a record if a new record is formed. Specifically, my database has a table titled "Preliminary deals" and "106318 Available capacity". Whenever an amount is entered in "Preliminary deals" for a specific date with K# 106318, i need Access to automatically subtract that amount from the record on that specific date in "106318 Available capacity". What is the best way to do this? Any help, please.
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