This is the part where you feel like a wizard. Take that decimal (0.15 from our pizza story) and multiply it by 100.
Why 100? Because a percentage is literally “per cent,” which is fancy Latin for “out of a hundred.” So you’re just asking, “Hey, if that pizza had 100 slices, how many would I eat?” The answer? 15%. You ate 15% of the pizza. Congratulations, you’re both a math whiz and a moderate over-eater.
If you ever forget to multiply by 100, your number stays a decimal, and you’ll walk around saying things like “I got 0.8 on my test.” Your friends will look at you funny. Don’t be that person.
Wait, What If I Just Want a Percentage of a Single Number?
Ah, the sneaky twist. Sometimes you don’t have a “total” pizza. You just have a number like 0.73 or 1.4. In that case, you’re already a decimal, so skip the division step. Just multiply by 100.
So 0.73 becomes 73%. And 1.4 becomes 140%. Yes, you can have more than 100%! That’s how you feel when you drink three coffees before noon. You’re operating at 140% energy—until the crash, of course.
How to convert a number to a percentage - YouTube
