-20.02% is the change from 834 to 667
Calculation steps:
[( 667 - 834 ) ÷ 834] x 100 = -20.02%
Formula
Percentage change = [(667 - 834) / 834] x 100
Subtract the new number by the original number
667 - 834 = -167
-167 ÷ 834 = -0.20023980815347722
-0.20023980815347722 x 100 = -20.02%