I've had 1/2 dozen orders that didn't come through correctly, and it's made my "products purchased" totals off. Can I manually go into the "Products" table and adjust the "products_ordered" value to make it all right again?

Seems like this would work, but it's a live store and last thing I want to do is have it mess something up that I don't figure out for 8 more weeks when some little thing compounds the problem and kills it all.

I can do that without hurting anything, right?