The fraction 23/73 works out to 31.51 % when expressed as a percentage. This is the rounded value you get when you convert the fraction to a percent and keep two decimal places.
In everyday life, percentages like this help you compare parts of a whole more easily. For example, if you had 73 items and owned 23 of them, you’d own roughly 31.51 % of the total.
Remember that the 31.51 % figure is an approximation; the exact decimal repeats, but rounding to two places makes it simple to read and use.