638.4% is the change from 125 to 923
Calculation steps:
[( 923 - 125 ) ÷ 125] x 100 = 638.4%
Formula
Percentage change = [(923 - 125) / 125] x 100
Subtract the new number by the original number
923 - 125 = 798
798 ÷ 125 = 6.384
6.384 x 100 = 638.4%
Example