-20.97% is the change from 844 to 667
Calculation steps:
[( 667 - 844 ) ÷ 844] x 100 = -20.97%
Formula
Percentage change = [(667 - 844) / 844] x 100
Subtract the new number by the original number
667 - 844 = -177
-177 ÷ 844 = -0.20971563981042654
-0.20971563981042654 x 100 = -20.97%