-83.8% is the change from 957 to 155
Calculation steps:
[( 155 - 957 ) ÷ 957] x 100 = -83.8%
Formula
Percentage change = [(155 - 957) / 957] x 100
Subtract the new number by the original number
155 - 957 = -802
-802 ÷ 957 = -0.8380355276907001
-0.8380355276907001 x 100 = -83.8%