The answer depends on what you are trying to do with the percentages.
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Addition, subtraction, multiplication and division
If we didn't have decimals, fractions and percentages math would be impossible. Try answering 1.7 - 0.6 without a decimal, and get the right answer. It has not made math easier or harder, it is an element we need.
Some of the many examples are calculating tax, discounts/sale prices, interest, gratuities (tips), grades, pay increases.
Something that may or may not happen as in the rules of probability from a scale of 1 to 0
Yes of course it can, all of these mathematics evolved from Vedas.