6/20 = 30%
A value of 30% can show up in everyday life when a store advertises a discount, a weather forecast gives the chance of rain, or a survey reports how many people chose an option. It means the amount is a noticeable part of the whole, but still less than half.
To picture 30%, imagine 20 equal spaces with 6 filled in, or a group of 10 with about 3 marked. It’s also a little less than one-third, which makes it easy to estimate at a glance.
A common mix-up is thinking that 30% off means an item costs 30% of its original price. It actually means the discount is 30% of the price, so the amount left to pay is 70% of the original price.
