The fraction 3/66 works out to 4.55% when expressed as a percentage. This rounded figure gives a quick sense of how small the part is compared to a whole.
If you simplify the fraction, 3 divided by 66 reduces to 1/22. Even though the numbers look different, the size of the piece stays the same, and the percentage stays at 4.55%.
Knowing the percentage is handy for everyday tasks like budgeting, measuring ingredients, or comparing data. A value of 4.55% tells you that the part is just under five out of every hundred.