-95.43% is the change from 438 to 20
Calculation steps:
[( 20 - 438 ) ÷ 438] x 100 = -95.43%
Formula
Percentage change = [(20 - 438) / 438] x 100
Subtract the new number by the original number
20 - 438 = -418
-418 ÷ 438 = -0.954337899543379
-0.954337899543379 x 100 = -95.43%