-21.35% is the change from 857 to 674
Calculation steps:
[( 674 - 857 ) ÷ 857] x 100 = -21.35%
Formula
Percentage change = [(674 - 857) / 857] x 100
Subtract the new number by the original number
674 - 857 = -183
-183 ÷ 857 = -0.21353558926487748
-0.21353558926487748 x 100 = -21.35%