-31.52% is the change from 663 to 454
Calculation steps:
[( 454 - 663 ) ÷ 663] x 100 = -31.52%
Formula
Percentage change = [(454 - 663) / 663] x 100
Subtract the new number by the original number
454 - 663 = -209
-209 ÷ 663 = -0.3152337858220211
-0.3152337858220211 x 100 = -31.52%