I second this and would add that you really need an automated way to do it. For coding, automated test suites go a long way toward catching boneheaded edits. It will understand the error messages from the failed tests and fix the mistakes more or less by itself.
But for other tasks like generating reports, I ask it to write little tools to reformat data with a schema definition, perform calculations, or do other things that are fairly easy to then double-check with tests that produce errors that it can work with. Having it "do math in its head" is just begging for disaster. But, it can easily write a tool to do it correctly.
But for other tasks like generating reports, I ask it to write little tools to reformat data with a schema definition, perform calculations, or do other things that are fairly easy to then double-check with tests that produce errors that it can work with. Having it "do math in its head" is just begging for disaster. But, it can easily write a tool to do it correctly.