-28.69% is the change from 934 to 666
Calculation steps:
[( 666 - 934 ) ÷ 934] x 100 = -28.69%
Formula
Percentage change = [(666 - 934) / 934] x 100
Subtract the new number by the original number
666 - 934 = -268
-268 ÷ 934 = -0.28693790149892934
-0.28693790149892934 x 100 = -28.69%