-81.82% is the change from 935 to 170
Calculation steps:
[( 170 - 935 ) ÷ 935] x 100 = -81.82%
Formula
Percentage change = [(170 - 935) / 935] x 100
Subtract the new number by the original number
170 - 935 = -765
-765 ÷ 935 = -0.8181818181818182
-0.8181818181818182 x 100 = -81.82%