-87.93% is the change from 439 to 53
Calculation steps:
[( 53 - 439 ) ÷ 439] x 100 = -87.93%
Formula
Percentage change = [(53 - 439) / 439] x 100
Subtract the new number by the original number
53 - 439 = -386
-386 ÷ 439 = -0.8792710706150342
-0.8792710706150342 x 100 = -87.93%