-50.93% is the change from 860 to 422
Calculation steps:
[( 422 - 860 ) ÷ 860] x 100 = -50.93%
Formula
Percentage change = [(422 - 860) / 860] x 100
Subtract the new number by the original number
422 - 860 = -438
-438 ÷ 860 = -0.5093023255813953
-0.5093023255813953 x 100 = -50.93%