-37.65% is the change from 996 to 621
Calculation steps:
[( 621 - 996 ) ÷ 996] x 100 = -37.65%
Formula
Percentage change = [(621 - 996) / 996] x 100
Subtract the new number by the original number
621 - 996 = -375
-375 ÷ 996 = -0.37650602409638556
-0.37650602409638556 x 100 = -37.65%