What is the percentage increase/decrease from 30 to 21?

percentage change calculator

The answer: the change from 30 to 21 = -30% decrease

What is the percentage increase /decrease from V1 to V2 ?

Input fields
Output fields %

Formula:(( 21 - 30 )/30)× 100 = -30 %  

Percentage change from 30 to 21?

What's the percentage change from 30 to 21? Is it an increase or a decrease?. This is what we will clarify through the results and charts. As shown below. You can also calculate values other than (30, 21) by using the calculator above or using Percentage change increse/decrease calculator.


30 to 21 decrease in Charts


Solution: What is the percentage change from 30 to 21?

Firstly, to calculate the change from 30 to 21, we use the formula below.

Formula: (Y - X) / X × 100
  • X refers to the number whose change from it, in our example, it's 30.
  • Y refers to the number whose change to it, it's 21.
  • 100 It's 100% (One hundred percent).


Calculation steps

Step 1 = (21 - 30) / 30 × 100

First: we subtract 21 from 30 then divide the result by 30. Second: multiply the result by 100 (one hundred).


Step 2 = (-9) / 30 × 100

21 minus 30 equals -9 . After that, we divide -9 by 30.


Step 3 = -0.3 × 100

-9 divided by 30 equals -0.3 , the next step is multiply the result by 100


Step 4 = -30% decrease


The resultThe percentage change from 30 to 21? is -30% decrease.


Percentage change from 21 to 30?

What is the percentage increase /decrease from V1 to V2 ?

Input fields
Output fields %

Solution for What is the percentage change from 21 to 30:


Calculation steps

Step 1 = (30 - 21) / 21 × 100

We subtract 30 from 21 then divide the result by 21. Second: multiply the result by 100


Step 2 = (9) / 21 × 100

30 minus 21 equals 9 . After that, we divide 9 by 21.


Step 3 = 0.42857142857143 × 100

9 divided by 21 equals 0.42857142857143 , the next step is multiply the result by 100


Step 4 = 42.857142857143% increase


The resultThe percentage change from 21 to 30? is 42.857142857143% increase.



Related links to: Change from 30 to 21


decrease from 30 to 21 similar calculation

change from 30 to 21?= -30%
change from 31 to 21?= -32.26%
change from 32 to 21?= -34.38%
change from 33 to 21?= -36.36%
change from 34 to 21?= -38.24%
change from 35 to 21?= -40%
change from 36 to 21?= -41.67%
change from 37 to 21?= -43.24%
change from 38 to 21?= -44.74%
change from 39 to 21?= -46.15%
change from 30 to 22?= -26.67%
change from 30 to 23?= -23.33%
change from 30 to 24?= -20%
change from 30 to 25?= -16.67%
change from 30 to 26?= -13.33%
change from 30 to 27?= -10%
change from 30 to 28?= -6.67%
change from 30 to 29?= -3.33%
change from 30 to 30?= 0%
change from 30 to 31?= 3.33%
change from 40 to 31?= -22.5%
change from 50 to 41?= -18%
change from 60 to 51?= -15%
change from 70 to 61?= -12.86%
change from 80 to 71?= -11.25%
change from 90 to 81?= -10%
change from 100 to 91?= -9%
change from 110 to 101?= -8.18%
change from 120 to 111?= -7.5%
change from 130 to 121?= -6.92%