I'm good at math except after more than one drink. Ngl, I really like it when the bill has a list of percentages and totals to preview. I'd like it even more if we just charged what food and labor cost and got rid of this nonsense though.
this post was submitted on 25 Jun 2026
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Move the decimal one place left and double it for 20%. Do it for the sub total if you prefer not to tip on tax.
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I expressed my displeasure of these tickets at a bar I work at to one of my coworkers. They then pointed out that in Toast POS you can just punch in the total bill and it generates the tip for you
TIL
Oh that's good to know, I used to do math and then realized I'm probably being an asshole and stopped.
MATH RETURNS BABY!
Remember math? It’s back, in pog form!
Oh I remember pogs. My brother's we're huge into them. I was just a bit too old for that fad to hit me. I was a Garbage Pail kid!
Well, the Roman numeral M is 1000, so this is a pretty good tip. Not sure about the rest, but hey I'll take.
FYI, most places will just use the total if there's anything wrong with your math (assuming it's at least what you owe) so this is perfectly valid.
The addition is the hard part though, calculating the tip amount is easy. Can you write in just the tip amount and let them figure it out at the POS?
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Weird, the restaurant I worked at always went with the tip line if there was any discrepancy.
Idk why people don't just give whole number tips. It's so much easier to just add $5 to something
Because it's easier to have a flat 50 out then 47.15.
Didn't realize my grandfather was alive and we're still balancing checkbooks by hand
Ever heard of cash?
Then you wouldn’t need to fill out a receipt like this.
GOTEEM!
Sacré bleu You mean they stopped producing do 6buck coin ? /j
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$7.83
My method:
- 42.17 + 8.00 = 50.17
- 8 - 1 = 7
- 0.17 - 0.02 = 0.15
- 0.85 + 0.15 = 1.00
- 0.85 - 0.02 = 0.83
Three cents to $42.20
Eighty cents to $43.00
Seven dollars to $50
Seven eighty-three!
Jesus brother, what the hell
What's the problem with this method? I figure out tips through mental math, without any paper. This is just explaining how I do that mental math
Yeah you did it in the hardest way possible hahaha
Just subtract 17 from 100 to get the cents. 83. There, done. Or at least 100 - 10 - 7
I can't do mental math that easily. I struggle with visualizing it, I think better in multiples of 5, and subtraction is more intuitive to me
Mine:
- ends in not 00, so add whatever makes the ones digit a 9 (7 in this case).
- make the cents even -> .20 (add .03)
- go to 100 (add .80)
I think, anyway. I can mostly just look at it and know.
This is how AIs do math
This is how I do mental math. Figuring out (100-15)-2 is a lot easier than 100-17
For me 100-20+3 is easier, but yeah
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People always say math when they just mean arithmetic.
For the general public that's a distinction without a difference
Yeah but for those of us who actually studied math, it's silly. Rote arithmetic barely qualifies, you hardly even see actual numbers in math except for a handful of single digit integers for exponents, subscripts, coefficients, etc.
It's like calling a golf cart a "sports car".
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Sadly yes
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I say maths
I say arithmetics
Perhaps they expected the server to use geometry to come up with the answer...
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