-84.67% is the change from 835 to 128
Calculation steps:
[( 128 - 835 ) ÷ 835] x 100 = -84.67%
Formula
Percentage change = [(128 - 835) / 835] x 100
Subtract the new number by the original number
128 - 835 = -707
-707 ÷ 835 = -0.8467065868263473
-0.8467065868263473 x 100 = -84.67%