-99.09% is the change from 438 to 4
Calculation steps:
[( 4 - 438 ) ÷ 438] x 100 = -99.09%
Formula
Percentage change = [(4 - 438) / 438] x 100
Subtract the new number by the original number
4 - 438 = -434
-434 ÷ 438 = -0.9908675799086758
-0.9908675799086758 x 100 = -99.09%