-29.94% is the change from 648 to 454
Calculation steps:
[( 454 - 648 ) ÷ 648] x 100 = -29.94%
Formula
Percentage change = [(454 - 648) / 648] x 100
Subtract the new number by the original number
454 - 648 = -194
-194 ÷ 648 = -0.2993827160493827
-0.2993827160493827 x 100 = -29.94%