Percentage Change from 50 to 10

Change =  
Amount of Change/Number

Change =  
-40/50

Change = -0.8
-0.8 Converted to a Percent: -0.8 = -80%
Percentage Change from 50 to 10 (50 – 40) = -80%
Note: Percentage Change of -80% = Percentage Decrease of 80%

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