-30.74% is the change from 901 to 624
Calculation steps:
[( 624 - 901 ) ÷ 901] x 100 = -30.74%
Formula
Percentage change = [(624 - 901) / 901] x 100
Subtract the new number by the original number
624 - 901 = -277
-277 ÷ 901 = -0.3074361820199778
-0.3074361820199778 x 100 = -30.74%