Not being able to figure out a tip does annoy me a bit, because when you know how 10% works then you've got all you need, just halve it and add it back on and you've got your minimum 15%, or double it for 20%.
It's not like that requires practice. Maybe to do it quickly, but moving a decimal place over in your head or halving or doubling is about as easy as it gets.
I don't want to disparage people who aren't good at math (compared to many here I'm like a grade schooler) but how do you make it though school without knowing the basics of percentages?
It's not like that requires practice. Maybe to do it quickly, but moving a decimal place over in your head or halving or doubling is about as easy as it gets.
I don't want to disparage people who aren't good at math (compared to many here I'm like a grade schooler) but how do you make it though school without knowing the basics of percentages?