637.5% is the change from 128 to 944
Calculation steps:
[( 944 - 128 ) ÷ 128] x 100 = 637.5%
Formula
Percentage change = [(944 - 128) / 128] x 100
Subtract the new number by the original number
944 - 128 = 816
816 ÷ 128 = 6.375
6.375 x 100 = 637.5%
Example