Belgian wrote:
One, that's criminal to auto-calculate tips on gross, you were really paying 35 to 38% tip on the net. 
Charchuk wrote:Could you break down the math on how you arrived at it...
He can't, because it's entirely false.
To start, I'm going to use the terminology that I see any time I get a bill: SUBTOTAL and TOTAL.
If I'm misunderstanding the terms NET and GROSS applying to those values respectively, stop me here.
Im not super good with accounting jargon and all this, but numbers I'm generally OK with.
The thing that tipped me off is that there would be no range. The percentage on the subtotal, given that you always tip the same on the TOTAL, would be the same.
So I wrote a 5 minute program to prove just that. Lo and behold, the figures don't matter, 20% on total == 22.6% on the SUBTOTAL. That's it. Always.
***Note: Im assuming Ontario, and 13% sales tax (as corroborated by a few receipts I have kicking around).
Though I shouldn't have to tell you that, you can do the math with those percentages to find out the tax rate, since:
2.60/20*100 = ...
13!
From what I could figure if he was tipping 15-20% on the gross it would be like he was tipping 16.95-22.6% on the net. There's a difference if you tip on the tax but it's not gigantic.
Exactly correct.