-30.12% is the change from 903 to 631
Calculation steps:
[( 631 - 903 ) ÷ 903] x 100 = -30.12%
Formula
Percentage change = [(631 - 903) / 903] x 100
Subtract the new number by the original number
631 - 903 = -272
-272 ÷ 903 = -0.301218161683278
-0.301218161683278 x 100 = -30.12%