-59.3% is the change from 629 to 256
Calculation steps:
[( 256 - 629 ) ÷ 629] x 100 = -59.3%
Formula
Percentage change = [(256 - 629) / 629] x 100
Subtract the new number by the original number
256 - 629 = -373
-373 ÷ 629 = -0.5930047694753577
-0.5930047694753577 x 100 = -59.3%