-86.99% is the change from 438 to 57
Calculation steps:
[( 57 - 438 ) ÷ 438] x 100 = -86.99%
Formula
Percentage change = [(57 - 438) / 438] x 100
Subtract the new number by the original number
57 - 438 = -381
-381 ÷ 438 = -0.8698630136986302
-0.8698630136986302 x 100 = -86.99%