-28.09% is the change from 929 to 668
Calculation steps:
[( 668 - 929 ) ÷ 929] x 100 = -28.09%
Formula
Percentage change = [(668 - 929) / 929] x 100
Subtract the new number by the original number
668 - 929 = -261
-261 ÷ 929 = -0.28094725511302476
-0.28094725511302476 x 100 = -28.09%