-84.45% is the change from 823 to 128
Calculation steps:
[( 128 - 823 ) ÷ 823] x 100 = -84.45%
Formula
Percentage change = [(128 - 823) / 823] x 100
Subtract the new number by the original number
128 - 823 = -695
-695 ÷ 823 = -0.8444714459295262
-0.8444714459295262 x 100 = -84.45%