8/80 = 10%
A value of 10% can show up as a discount on a jacket, a tip on a bill, or part of a class that chose a certain activity. It’s a modest share, but it can still matter when the total is large.
To picture it quickly, imagine a tray split into ten equal sections with one section shaded. That shaded section represents the same share as 8/80.
A common mix-up is thinking that 8/80 must be a large share because both numbers look fairly big. The size of the share depends on how the top number compares with the bottom one, not on the top number alone.