Percent Formula (percentage Calculator)

Calculate percentage % with Calculator made by this percent formula

Percentage Calculator
What is % of ? Answer:
is what percent of ? Answer: %

Percentage formula

Percentage formula A percentage is a numeral value or proportion expressed as a fraction of 100. For example 85% is said to be 85/100 or 0.85. The word percent means exactly “for each hundred”. During the 17th century the symbol o/o was frequently used in Europe to symbolize a percent. The percent sign “%” is used to indicate a percentage of 100. Related signs are of permille and permyriad. If someone says that the company has grown by 100% it means to grow twice as the original form because it means adding 100% to what already is present. Loosing 100% means losing all that was possessed.
Percents also provide a relative examination of quantitative information.

To express x/y as a percentage we multiple the fraction by 100 i.e. [x/y * 100].
Another very common formula to find a percentage is Percentage=(Value/Total value)*100

35% of 100 is ___
Ans. = (35/100)*100= 35
So the answer is 35.

There are many other forms of percentages like percentage increase, percentage decrease, percentage error, percentage difference and percentage change.
-Percentage change is comparison between old value and the new value found. Formula:
Percent Change = New Value - Old Value × 100%
Old Value

there were 100 employees yesterday and 150 employees today:
150 - 100 × 100%

= (50/100)*100 = 50% increase
-Percentage error is showing the error as a percent of the exact value.
Approximate Value - Exact Value × 100%

Exact Value

I thought 40 people will show up for my party but 30 did!
40- 30 × 100%

So I was in error of 25%

-Percentage difference is the difference between two values divided by the average of the two values, displayed as a percentage. Formula:
| First Value - Second Value | × 100%
(First Value + Second Value)/2

"Heirs clothes" gets 200 customers, and "Bayer’s Shoes" gets 240 customers
| 240 - 200 | × 100% = |40/220| × 100% = 18.18...%

The other common percentage is interest rate/compound rate. It is the rate at which interest is paid by a borrower for the use of money that they use from a lender. Each year the amount available in the bank would have increased interest on it. This is known as compound interest.
[(100 + %change)^no of years] × original value
Example# 5
If the $500 had been left in the bank for 9 years, the quantity would have enlarged to: 500 × (1.06)9 = £845

Percentage Increase is the increase in a number in relation to its 100th value. To work out an increase you first the difference between the values you are comparing and than divide the increase by 100.

Increase = New Number - Original Number
% increase = Increase ÷ Original Number × 100.

If the value is negative, it will be considered as percentage decrease. The formula for percentage decrease is as followed:

% Decrease = Decrease ÷ Original Number × 100
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