-33.88% is the change from 856 to 566
Calculation steps:
[( 566 - 856 ) ÷ 856] x 100 = -33.88%
Formula
Percentage change = [(566 - 856) / 856] x 100
Subtract the new number by the original number
566 - 856 = -290
-290 ÷ 856 = -0.338785046728972
-0.338785046728972 x 100 = -33.88%