679.69% is the change from 128 to 998
Calculation steps:
[( 998 - 128 ) ÷ 128] x 100 = 679.69%
Formula
Percentage change = [(998 - 128) / 128] x 100
Subtract the new number by the original number
998 - 128 = 870
870 ÷ 128 = 6.796875
6.796875 x 100 = 679.69%