-50.46% is the change from 866 to 429
Calculation steps:
[( 429 - 866 ) ÷ 866] x 100 = -50.46%
Formula
Percentage change = [(429 - 866) / 866] x 100
Subtract the new number by the original number
429 - 866 = -437
-437 ÷ 866 = -0.5046189376443418
-0.5046189376443418 x 100 = -50.46%