-24.27% is the change from 857 to 649
Calculation steps:
[( 649 - 857 ) ÷ 857] x 100 = -24.27%
Formula
Percentage change = [(649 - 857) / 857] x 100
Subtract the new number by the original number
649 - 857 = -208
-208 ÷ 857 = -0.2427071178529755
-0.2427071178529755 x 100 = -24.27%