Before you send that spreadsheet to your boss, do a quick sanity check. Add up a few numbers in your head (or use a calculator if you’re rusty). Make sure the average isn’t way off.
Excel is smart, but it’s not psychic. If you feed it garbage, it gives you garbage averaged out. That’s the whole “garbage in, garbage out” philosophy.
So go ahead—average your expenses, your test scores, even your cat’s sleeping hours. Excel can handle it. And now, so can you. High five!
