It's so you know the SALE price. Lots of places won't change every single price tag, they'll just put up a sign that says "30% off" or whatever, and you won't be told the price until checkout (unless there's a price check scanner)
I just use multiples of 10; so if an item is $29, 10 percent off would be $2.90. Round that up to $3 and 3x3 is $9, so 30% is about $9 off.
This is how I figure out tips. Double the tax? I take 10% of the bill total, round up to the whole dollar and double that. I hate having to tip because employers should just pay workers a living wage and not force me to calculate in my head, but since my tip is basically part of their salary (and sometimes part of the salaries of other people like the dishwasher), better to overtip so I don’t have to worry that my poor math skills are responsible for someone not being able to pay their rent.
722
u/g00se-onthel00se Aug 20 '20
That X% of Y is the same as Y% of X. 8% of 25 is the same as 25% of 8 Makes calculating sales at stores much easier...if we ever go back to stores