-96.05% is the change from 456 to 18
Calculation steps:
[( 18 - 456 ) ÷ 456] x 100 = -96.05%
Formula
Percentage change = [(18 - 456) / 456] x 100
Subtract the new number by the original number
18 - 456 = -438
-438 ÷ 456 = -0.9605263157894737
-0.9605263157894737 x 100 = -96.05%