80/90 as a percentage is 88.89%. This is the rounded value you get when you compare the part (80) to the whole (90).
The fraction 80/90 can be reduced to 8/9, which shows that it is a little less than a full whole. In everyday terms, it means you have about 89 out of 100 parts.
When you see 88.89% on a report or a chart, you know it represents the same relationship as the original 80/90 fraction, just expressed in a way that’s easy to compare with other percentages.
Remember, using percentages makes it simple to see how close something is to a whole, and 88.89% tells you it’s just shy of 90%.
