-31.08% is the change from 904 to 623
Calculation steps:
[( 623 - 904 ) ÷ 904] x 100 = -31.08%
Formula
Percentage change = [(623 - 904) / 904] x 100
Subtract the new number by the original number
623 - 904 = -281
-281 ÷ 904 = -0.3108407079646018
-0.3108407079646018 x 100 = -31.08%