-48.97% is the change from 629 to 321
Calculation steps:
[( 321 - 629 ) ÷ 629] x 100 = -48.97%
Formula
Percentage change = [(321 - 629) / 629] x 100
Subtract the new number by the original number
321 - 629 = -308
-308 ÷ 629 = -0.48966613672496023
-0.48966613672496023 x 100 = -48.97%