Percentage Change from 100 to 80

Change =  
Amount of Change/Number

Change =  
-20/100

Change = -0.2
-0.2 Converted to a Percent: -0.2 = -20%
Percentage Change from 100 to 80 (100 – 20) = -20%
Note: Percentage Change of -20% = Percentage Decrease of 20%

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