-82.77% is the change from 917 to 158
Calculation steps:
[( 158 - 917 ) ÷ 917] x 100 = -82.77%
Formula
Percentage change = [(158 - 917) / 917] x 100
Subtract the new number by the original number
158 - 917 = -759
-759 ÷ 917 = -0.8276990185387132
-0.8276990185387132 x 100 = -82.77%