-90.81% is the change from 903 to 83
Calculation steps:
[( 83 - 903 ) ÷ 903] x 100 = -90.81%
Formula
Percentage change = [(83 - 903) / 903] x 100
Subtract the new number by the original number
83 - 903 = -820
-820 ÷ 903 = -0.9080841638981174
-0.9080841638981174 x 100 = -90.81%