22/78 as a percentage is 28.21%. This rounded figure tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 22/78 can be simplified to 11/39, but the decimal and percentage forms are often easier to understand in everyday situations. Seeing it as about 28% gives you a quick sense of its size without doing any math.
In practical terms, if you had 78 pieces of something and you took 22 of them, you would have taken roughly a little more than a quarter of the total. That same portion can be expressed as 28.21%, which is handy for reports, charts, or simple comparisons.
