[ have a little girl (at least she LOOKS like a little girl) giving you a glare while waiting a few beats. she readily rolls her eyes and goes back to narrowing them as soon as he obviously falters. she's hungry, god damn it! ]

You work here, huh? You're in a high school or something right? Didn't they ever teach you how to use a calculator in school? It's simple numbers!

[ not that math is her strong suit either BUT SHE'S NOT WORKING HERE AND THAT'S NOT THE POINT. ]