-27.71% is the change from 924 to 668
Calculation steps:
[( 668 - 924 ) ÷ 924] x 100 = -27.71%
Formula
Percentage change = [(668 - 924) / 924] x 100
Subtract the new number by the original number
668 - 924 = -256
-256 ÷ 924 = -0.27705627705627706
-0.27705627705627706 x 100 = -27.71%