-9.08% is the change from 903 to 821
Calculation steps:
[( 821 - 903 ) ÷ 903] x 100 = -9.08%
Formula
Percentage change = [(821 - 903) / 903] x 100
Subtract the new number by the original number
821 - 903 = -82
-82 ÷ 903 = -0.09080841638981174
-0.09080841638981174 x 100 = -9.08%