-34.93% is the change from 856 to 557
Calculation steps:
[( 557 - 856 ) ÷ 856] x 100 = -34.93%
Formula
Percentage change = [(557 - 856) / 856] x 100
Subtract the new number by the original number
557 - 856 = -299
-299 ÷ 856 = -0.3492990654205608
-0.3492990654205608 x 100 = -34.93%