-31.39% is the change from 857 to 588
Calculation steps:
[( 588 - 857 ) ÷ 857] x 100 = -31.39%
Formula
Percentage change = [(588 - 857) / 857] x 100
Subtract the new number by the original number
588 - 857 = -269
-269 ÷ 857 = -0.31388564760793464
-0.31388564760793464 x 100 = -31.39%