-51.05% is the change from 856 to 419
Calculation steps:
[( 419 - 856 ) ÷ 856] x 100 = -51.05%
Formula
Percentage change = [(419 - 856) / 856] x 100
Subtract the new number by the original number
419 - 856 = -437
-437 ÷ 856 = -0.5105140186915887
-0.5105140186915887 x 100 = -51.05%