-86.73% is the change from 407 to 54
Calculation steps:
[( 54 - 407 ) ÷ 407] x 100 = -86.73%
Formula
Percentage change = [(54 - 407) / 407] x 100
Subtract the new number by the original number
54 - 407 = -353
-353 ÷ 407 = -0.8673218673218673
-0.8673218673218673 x 100 = -86.73%