Percentage Change from 30 to 42

Change =  
Amount of Change/Number

Change =  
12/30

Change = 0.4
0.4 Converted to a Percent: 0.4 = 40%
Percentage Change from 30 to 42 (30 + 12) = 40%
Note: Percentage Change of 40% = Percentage Increase of 40%

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