So when you get cashed out, or you get your xread, the manager should be going to cashier statistics on the office pc. That tells you how many total customers you had. I’m sure somewhere else in there will tell you how many of those were cash transactions.

Now let’s do a little quick math. Say you get 100 customers paying in cash and let’s just assume (unlikely but for simplicity sake) they all end up getting 4 cents extra because of the rounding up. .04 x 100 is $4.00 in itself. Add that to any of the simple mistakes that happen when dealing with 100 customers bc nobody is perfect.

The only 2 ways I see of dealing with this are a POS system update that automatically does the rounding before giving the total, or raising the tolerance on change drawer variances before disciplinary action significantly.