-37.03% is the change from 856 to 539
Calculation steps:
[( 539 - 856 ) ÷ 856] x 100 = -37.03%
Formula
Percentage change = [(539 - 856) / 856] x 100
Subtract the new number by the original number
539 - 856 = -317
-317 ÷ 856 = -0.3703271028037383
-0.3703271028037383 x 100 = -37.03%