-50.81% is the change from 860 to 423
Calculation steps:
[( 423 - 860 ) ÷ 860] x 100 = -50.81%
Formula
Percentage change = [(423 - 860) / 860] x 100
Subtract the new number by the original number
423 - 860 = -437
-437 ÷ 860 = -0.5081395348837209
-0.5081395348837209 x 100 = -50.81%