13/72 = ≈18.06%
Rounded to 2 decimal places.
A value like 13/72, or about 18.06%, could describe how often something happens, such as a few rainy days in a stretch of 72 days. It might also show up in a survey or when comparing part of a group with the whole group.
To picture it quickly, think of 18 out of every 100, which is a little less than one-fifth. Since one-fifth is 20%, 18.06% is close to that but slightly smaller.
One common mix-up is treating 18.06% as 18.06 instead of as a portion of 100. It means a bit over 18 out of 100, not 18 whole units.