80/100 = 80%
A value of 80% shows up in everyday life, like a phone battery that’s mostly charged or a test score that’s pretty strong. If a store advertises an 80% discount, though, that means the price is reduced by a lot.
To picture 80%, imagine a grid of 100 squares with 80 shaded in. A quick estimate is to think of it as about four-fifths of the whole, leaving a smaller part unshaded.
One common mix-up is thinking that an 80% discount means you pay 80% of the original price. It actually means 80% is taken off, so you pay the remaining 20%.
