What is X% of Y?

For Example: What is 10 % of 100? [Answer = 10]

Value Of X = ...
Value Of Y = ...

Value of X
Value of Y ×
= Answer
100

Substituting Values In Formula,

X
Y ×
= Answer
100

... is X % of Y.

X is what % of Y?

For Example: The number 35 is what % of 100? [Answer = 35%]

Value of X =...
Value of Y =...

Value of X
× 100 = Answer %
Value of Y

Substituting Values In Formula,

X
× 100 = Answer %
Y

X is ... % of Y.

Percentage Change Calculator




Original Amount = ...
New Amount = ...

Increased Amount
× 100 = Ans %
Original Amount

Increased Amount = New Amount - Original Amount

Substituting Values In Formula,

New Amount - Original Amount = Increased Amount
Increased Amount
× 100 = Ans %
Original Amount

Percentage Change = ... % Increased.



Original Amount = ...
New Amount = ...

Decreased Amount
× 100 = Ans %
Original Amount

Decreased Amount = Original Amount - New Amount

Substituting Values In Formula,

Original Amount - New Amount = Decreased Amount

Decreased Amount
× 100 = Ans %
Original Amount

Percentage Change = ... % decreased.

Percentage Difference Calculator


First value = ...
Second value = ...

| First value - Second value |
x 100
First value + Second value
2

Substituting Values In Formula,

| First Value - Second value |
x 100
First value + Second value
2

Subtraction
x 100 = Answer %
Average

Percentage Difference between ... and ... is .....

How to Calculate Percentage?


Well, there are lots of ways you can calculate the percentage a few of them as follows:

1. Common Phrases to calculate a percentage.


A. What is X% of Y?
B. X is what % of Y?

2 Percentage Change Calculator

1.Percentage Increase Calculator
2.Percentage Decrease Calculator

3 Percentage Difference Calculator


Let's look at them one by one in detail.

1. Common Phrases to calculate a percentage.


The most used common Phrases to calculate percentages are What is X% of Y? and X is what % of Y?.
Let's look at them one by one.

  A. What is X% of Y?


Example: What is 23 % of 499?

Here, 23 is X, and 499 is Y.
Formula,

Value of X
Value of Y ×
= Answer
100

 [Here we are converting a value of X into a decimal, therefore we are dividing X by 100 to convert percentage into a decimal. ]

Substituting Values In Formula,

23
499 ×
= 90
100

23 % of 499 is 90.

Let's take another example,

Alex brought a new car. He got an 8 % discount and the car price before the discount was $40,000. Now he wanted to know the discounted price.

Here, What is 8% of $40,000?
x = 8% & Y = 40,000

Value of X
Value of Y ×
= Answer
100

Substituting Values In Formula,
8
40,000 ×
= 3200
100

8% of $40,000 is $ 3200.

Hence, Alex got 8 % discount i.e $ 3200 off.

Question Answer
5 % of 20? 1
40% of 20? 8
60% of 20? 12
80% of 20? 16
20% of 40? 8
60% of 40? 24
80% of 40? 32
40% of 50? 20
60% of 50? 30
5% of 60? 3
10% of 60? 6
20% of 60? 12
40% of 60? 24
20% of 90? 18
1% Of 100? 1
5% Of 100? 5
10% Of 100? 10
20% of 100? 20
60% Of 100? 60
10% of 150? 15
1% Of 200? 2
23% Of 200? 46
20% of 900? 180
what is 10% of 40? 4
1 percent of 1 million? 10000
1 percent of 1 billion? 10000000
1 percent of 7.7 billion? 77000000
5% of 1 billion? 50000000
0.5% of 7.8 billion? 39000000

   B.X is what % of Y?


Example: 35 is what % of 100?
Here, 35 is X, and 100 is Y.
Formula,

Value of X
× 100 = Answer %
Value of Y

Substituting Values In Formula,

35
× 100 = 35 %
100

35 is 35% of 100.

Let's take another example,
Mike went to buy a bicycle. He saw the board of $100 off on each bicycle. Each bicycle worth $2999 before the discount. Now Mike wants to know how much percent off on each bicycle.

Here, $100 is what percent of $2999?
X= 100 and Y = 2999

Value of X
× 100 = Answer %
Value of Y

Substituting Values In Formula,

100
× 100 = 3.33 %
2999

Mike will get 3.33% off.

2. Percentage Change Calculator


Percentage Change Calculator is used to know the number of percentage changes (increase or decrease).
If you have $100 in a pocket and someone gives you $100. Now you have $200 in total. Therefore 100% change in amount.

    A.percentage increase calculator


Example: Bruce working in a company. He got a promotion. His previous salary was $5000/month. Now his salary increased from $5000 to $5400.
Now bruce wanted to know the amount of percent increased in his salary.
Here, Original Amount = $5000, New amount = $5400

Formula,

Increased Amount
× 100 = Ans %
Original Amount

Increased Amount = New Amount - Original Amount

Substituting Values In Formula,

5400  - 5000 = 400

400
× 100 = 8 %
5000

Bruce's salary increased by 8% 
You can calculate New amount - Original Amount directly in the formula.  Now the formula becomes,

New Amount - Original Amount
× 100 = Ans %
Original Amount
Where New amount - Original Amount = Increased Amount

   B.Percentage Decrease Calculator


Example: Sam scored 89% last year. This year sam scored 85%. Now sam wanted to know the amount of percent decreased.

Original Amount = 89
New amount = 85
Formula,

Decreased Amount
× 100 = Ans %
Original Amount

Decreased Amount = Original Amount - New Amount

Substituting Values In Formula,
89 - 85 = 4

4
× 100 = 4.49 %
89

Sam's percentage decreased by 4.49% 

You can calculate New amount - Original Amount directly in the formula.  Now the formula becomes,

Original Amount - New Amount
× 100 = Ans %
Original Amount
Where Original amount -  New Amount = Decreased Amount 

3.Percentage Difference Calculator


The Percentage Difference Calculator is used to find the percentage difference between two numbers. Percentage Difference Calculator does not need an order of numbers because we taking the difference between two numbers in the mod ( Mod means if the difference between two numbers comes -ve, it will be considered as +ve) and dividing it with the average of two numbers.

Example: find the Percentage Difference between 75 and 48.
First value= 75
Second value= 48
Formula,

| First value - Second value |
x 100
First value + Second value
2

Substituting Values In Formula,

| 75 - 48 |
x 100
75 + 48
2

27
x 100 = 43.90 %
61.50

Percentage Difference between 75 and 48 is 43.90%

| 75-48 | =27
75 - 48 is in Mod, therefore if subtraction comes -ve value, we will eliminate the -ve sign and consider value as +ve (Absolute value).

Percentage Difference Calculator does not need an order of numbers.
Example 1 find Percentage Difference between 76 and 98 and
Example 2 find Percentage Difference between 98 and 76.
The answer to these two examples will be the same i.e 25.28 (You can try).

Tip :Press Tab to switch cell and press Enter to calculate.

Tip :Press Enter to calculate.