Use this percentage plus calculator to quickly add percentage or increase number a by a percentage.
See also: Decrease a number by a percentage
We simply multiply the number with (1+percentage) to increase it by that many percent:-
Percent-added value = N ×(1+p/100);
Where,
p is the percentage to be added to number N
The same calculation is used for calculating price of a product including the sales tax, cost markup price and gratuity-tip amount.
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