-31.23% is the change from 903 to 621
Calculation steps:
[( 621 - 903 ) ÷ 903] x 100 = -31.23%
Formula
Percentage change = [(621 - 903) / 903] x 100
Subtract the new number by the original number
621 - 903 = -282
-282 ÷ 903 = -0.3122923588039867
-0.3122923588039867 x 100 = -31.23%