-83.42% is the change from 935 to 155
Calculation steps:
[( 155 - 935 ) ÷ 935] x 100 = -83.42%
Formula
Percentage change = [(155 - 935) / 935] x 100
Subtract the new number by the original number
155 - 935 = -780
-780 ÷ 935 = -0.8342245989304813
-0.8342245989304813 x 100 = -83.42%