-83.94% is the change from 797 to 128
Calculation steps:
[( 128 - 797 ) ÷ 797] x 100 = -83.94%
Formula
Percentage change = [(128 - 797) / 797] x 100
Subtract the new number by the original number
128 - 797 = -669
-669 ÷ 797 = -0.8393977415307403
-0.8393977415307403 x 100 = -83.94%