30.54% is the change from 668 to 872
Calculation steps:
[( 872 - 668 ) ÷ 668] x 100 = 30.54%
Formula
Percentage change = [(872 - 668) / 668] x 100
Subtract the new number by the original number
872 - 668 = 204
204 ÷ 668 = 0.30538922155688625
0.30538922155688625 x 100 = 30.54%
Example