-18.6% is the change from 629 to 512
Calculation steps:
[( 512 - 629 ) ÷ 629] x 100 = -18.6%
Formula
Percentage change = [(512 - 629) / 629] x 100
Subtract the new number by the original number
512 - 629 = -117
-117 ÷ 629 = -0.18600953895071543
-0.18600953895071543 x 100 = -18.6%