-83.51% is the change from 940 to 155
Calculation steps:
[( 155 - 940 ) ÷ 940] x 100 = -83.51%
Formula
Percentage change = [(155 - 940) / 940] x 100
Subtract the new number by the original number
155 - 940 = -785
-785 ÷ 940 = -0.8351063829787234
-0.8351063829787234 x 100 = -83.51%