-97.8% is the change from 454 to 10
Calculation steps:
[( 10 - 454 ) ÷ 454] x 100 = -97.8%
Formula
Percentage change = [(10 - 454) / 454] x 100
Subtract the new number by the original number
10 - 454 = -444
-444 ÷ 454 = -0.9779735682819384
-0.9779735682819384 x 100 = -97.8%