-31.61% is the change from 908 to 621
Calculation steps:
[( 621 - 908 ) ÷ 908] x 100 = -31.61%
Formula
Percentage change = [(621 - 908) / 908] x 100
Subtract the new number by the original number
621 - 908 = -287
-287 ÷ 908 = -0.31607929515418504
-0.31607929515418504 x 100 = -31.61%