-83.76% is the change from 788 to 128
Calculation steps:
[( 128 - 788 ) ÷ 788] x 100 = -83.76%
Formula
Percentage change = [(128 - 788) / 788] x 100
Subtract the new number by the original number
128 - 788 = -660
-660 ÷ 788 = -0.8375634517766497
-0.8375634517766497 x 100 = -83.76%