-87.67% is the change from 454 to 56
Calculation steps:
[( 56 - 454 ) ÷ 454] x 100 = -87.67%
Formula
Percentage change = [(56 - 454) / 454] x 100
Subtract the new number by the original number
56 - 454 = -398
-398 ÷ 454 = -0.8766519823788547
-0.8766519823788547 x 100 = -87.67%