-32.28% is the change from 666 to 451
Calculation steps:
[( 451 - 666 ) ÷ 666] x 100 = -32.28%
Formula
Percentage change = [(451 - 666) / 666] x 100
Subtract the new number by the original number
451 - 666 = -215
-215 ÷ 666 = -0.3228228228228228
-0.3228228228228228 x 100 = -32.28%