percentage change calculator

The answer: the change from 100 to 80 = -20% decrease

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

Input fields
Output fields %

Formula:(( 80 - 100 )/100)× 100 = -20 %  

Percentage change from 100 to 80?

What's the percentage change from 100 to 80? 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 (100, 80) by using the calculator above or using Percentage change increse/decrease calculator.


100 to 80 decrease in Charts


Solution: What is the percentage change from 100 to 80?

Firstly, to calculate the change from 100 to 80, we use the formula below.

Formula: (Y - X) / X × 100
  • X refers to the number whose change from it, in our example, it's 100.
  • Y refers to the number whose change to it, it's 80.
  • 100 It's 100% (One hundred percent).


Calculation steps

Step 1 = (80 - 100) / 100 × 100

First: we subtract 80 from 100 then divide the result by 100. Second: multiply the result by 100 (one hundred).


Step 2 = (-20) / 100 × 100

80 minus 100 equals -20 . After that, we divide -20 by 100.


Step 3 = -0.2 × 100

-20 divided by 100 equals -0.2 , the next step is multiply the result by 100


Step 4 = -20% decrease


The resultThe percentage change from 100 to 80? is -20% decrease.



Percentage change from 80 to 100?

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

Input fields
Output fields %

Solution for What is the percentage change from 80 to 100:


Calculation steps

Step 1 = (100 - 80) / 80 × 100

We subtract 100 from 80 then divide the result by 80. Second: multiply the result by 100


Step 2 = (20) / 80 × 100

100 minus 80 equals 20 . After that, we divide 20 by 80.


Step 3 = 0.25 × 100

20 divided by 80 equals 0.25 , the next step is multiply the result by 100


Step 4 = 25% increase


The resultThe percentage change from 80 to 100? is 25% increase.




Related links to: Change from 100 to 80


decrease from 100 to 80 similar calculation

change from 100 to 80?= -20%
change from 101 to 80?= -20.79%
change from 102 to 80?= -21.57%
change from 103 to 80?= -22.33%
change from 104 to 80?= -23.08%
change from 105 to 80?= -23.81%
change from 106 to 80?= -24.53%
change from 107 to 80?= -25.23%
change from 108 to 80?= -25.93%
change from 109 to 80?= -26.61%
change from 100 to 81?= -19%
change from 100 to 82?= -18%
change from 100 to 83?= -17%
change from 100 to 84?= -16%
change from 100 to 85?= -15%
change from 100 to 86?= -14%
change from 100 to 87?= -13%
change from 100 to 88?= -12%
change from 100 to 89?= -11%
change from 100 to 90?= -10%
change from 110 to 90?= -18.18%
change from 120 to 100?= -16.67%
change from 130 to 110?= -15.38%
change from 140 to 120?= -14.29%
change from 150 to 130?= -13.33%
change from 160 to 140?= -12.5%
change from 170 to 150?= -11.76%
change from 180 to 160?= -11.11%
change from 190 to 170?= -10.53%
change from 200 to 180?= -10%