634.38% is the change from 128 to 940
Calculation steps:
[( 940 - 128 ) ÷ 128] x 100 = 634.38%
Formula
Percentage change = [(940 - 128) / 128] x 100
Subtract the new number by the original number
940 - 128 = 812
812 ÷ 128 = 6.34375
6.34375 x 100 = 634.38%