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Imagine being able to impress your date with the ability to calculate percentages at super speed when it’s time to tip the staff. I always kiss my date ON THE LIPS when they can calculate tips, and this is a pretty common reaction. So, you’re about to get a three-in-one treat, my friend – because this video is going to help you ace that exam; prepare you to tip your next wait staff and amaze your date and friends; and also, you’re probably going to get a wank in – unless you’re specifically here to learn about math. And if you are... Well... Respect.