-30.81% is the change from 857 to 593
Calculation steps:
[( 593 - 857 ) ÷ 857] x 100 = -30.81%
Formula
Percentage change = [(593 - 857) / 857] x 100
Subtract the new number by the original number
593 - 857 = -264
-264 ÷ 857 = -0.3080513418903151
-0.3080513418903151 x 100 = -30.81%