-98.46% is the change from 454 to 7
Calculation steps:
[( 7 - 454 ) ÷ 454] x 100 = -98.46%
Formula
Percentage change = [(7 - 454) / 454] x 100
Subtract the new number by the original number
7 - 454 = -447
-447 ÷ 454 = -0.9845814977973568
-0.9845814977973568 x 100 = -98.46%