-28.39% is the change from 930 to 666
Calculation steps:
[( 666 - 930 ) ÷ 930] x 100 = -28.39%
Formula
Percentage change = [(666 - 930) / 930] x 100
Subtract the new number by the original number
666 - 930 = -264
-264 ÷ 930 = -0.2838709677419355
-0.2838709677419355 x 100 = -28.39%