-9.97% is the change from 903 to 813
Calculation steps:
[( 813 - 903 ) ÷ 903] x 100 = -9.97%
Formula
Percentage change = [(813 - 903) / 903] x 100
Subtract the new number by the original number
813 - 903 = -90
-90 ÷ 903 = -0.09966777408637874
-0.09966777408637874 x 100 = -9.97%