-50.52% is the change from 861 to 426
Calculation steps:
[( 426 - 861 ) ÷ 861] x 100 = -50.52%
Formula
Percentage change = [(426 - 861) / 861] x 100
Subtract the new number by the original number
426 - 861 = -435
-435 ÷ 861 = -0.5052264808362369
-0.5052264808362369 x 100 = -50.52%