-96.01% is the change from 451 to 18
Calculation steps:
[( 18 - 451 ) ÷ 451] x 100 = -96.01%
Formula
Percentage change = [(18 - 451) / 451] x 100
Subtract the new number by the original number
18 - 451 = -433
-433 ÷ 451 = -0.9600886917960089
-0.9600886917960089 x 100 = -96.01%