-87.94% is the change from 456 to 55
Calculation steps:
[( 55 - 456 ) ÷ 456] x 100 = -87.94%
Formula
Percentage change = [(55 - 456) / 456] x 100
Subtract the new number by the original number
55 - 456 = -401
-401 ÷ 456 = -0.8793859649122807
-0.8793859649122807 x 100 = -87.94%