-30.85% is the change from 901 to 623
Calculation steps:
[( 623 - 901 ) ÷ 901] x 100 = -30.85%
Formula
Percentage change = [(623 - 901) / 901] x 100
Subtract the new number by the original number
623 - 901 = -278
-278 ÷ 901 = -0.30854605993340734
-0.30854605993340734 x 100 = -30.85%