-31.08% is the change from 666 to 459
Calculation steps:
[( 459 - 666 ) ÷ 666] x 100 = -31.08%
Formula
Percentage change = [(459 - 666) / 666] x 100
Subtract the new number by the original number
459 - 666 = -207
-207 ÷ 666 = -0.3108108108108108
-0.3108108108108108 x 100 = -31.08%