-28.82% is the change from 857 to 610
Calculation steps:
[( 610 - 857 ) ÷ 857] x 100 = -28.82%
Formula
Percentage change = [(610 - 857) / 857] x 100
Subtract the new number by the original number
610 - 857 = -247
-247 ÷ 857 = -0.2882147024504084
-0.2882147024504084 x 100 = -28.82%