86 to 66 percent increase or decrease
Using this tool you can find the percent Decrease for any value. So, we think you reached us looking for answers to questions like:
1) What is the percentage Decrease from 86 to 66? 2) What is the absolute Decrease from 86 to 66. Or may be: 86 to 66 percent increase or decrease
See the solution to these problems just after the Percentage Decrease Calculator below.
How to calculate percent change  Step by Step
Percent increase or decrease measures percent changes between two values. Use this calculator when comparing an old value to a new value.
The Percent Change Calculator uses this formula:
% change =  ( 
New Value  Old Value

)  Ã— 100%  
Old Value 
Where Old Value represents the absolute value of the reference (this is made in order to work well with both positive and negative values of Old Value and New Value. Note that percent change and relative change mean the same thing. It can be a percent increase or a percent decrease depending on the new and the old values. If the new value is greater than the old value, the result will be positive and we will have a increase. On the other hand, if the new value is smaller than old value, the result will be negative and we will have a we have a decrease. The old value, as a reference, may be: a theoretical, the actual, the correct, an accepted, an optimal, the starting, and so on. See more about percent percent change here.
Here are the solutions to the questions stated above:
1) What is the percentage decrease from 86 to 66?
Use the above formula to find the percent change. So, replacing the given values, we have
Percent change = [(66  86) / 86] x 100 = 23.255813953488 % (decrease)
Where: 86 is the old value and 66 is the new value. In this case we have a % of decrease because the new value is smaller than the old value.
2) What is the absolute Decrease from 86 to 66?
This problem is not about percent or relative change, but about absolute change. Its solution is very simple:
Absolute change, or
= 66  86 = 20 (decrease)
Percent Change Calculator
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