-31.98% is the change from 666 to 453
Calculation steps:
[( 453 - 666 ) ÷ 666] x 100 = -31.98%
Formula
Percentage change = [(453 - 666) / 666] x 100
Subtract the new number by the original number
453 - 666 = -213
-213 ÷ 666 = -0.31981981981981983
-0.31981981981981983 x 100 = -31.98%