-22.17% is the change from 857 to 667
Calculation steps:
[( 667 - 857 ) ÷ 857] x 100 = -22.17%
Formula
Percentage change = [(667 - 857) / 857] x 100
Subtract the new number by the original number
667 - 857 = -190
-190 ÷ 857 = -0.22170361726954493
-0.22170361726954493 x 100 = -22.17%