-83.82% is the change from 791 to 128
Calculation steps:
[( 128 - 791 ) ÷ 791] x 100 = -83.82%
Formula
Percentage change = [(128 - 791) / 791] x 100
Subtract the new number by the original number
128 - 791 = -663
-663 ÷ 791 = -0.8381795195954488
-0.8381795195954488 x 100 = -83.82%