-96.39% is the change from 554 to 20
Calculation steps:
[( 20 - 554 ) ÷ 554] x 100 = -96.39%
Formula
Percentage change = [(20 - 554) / 554] x 100
Subtract the new number by the original number
20 - 554 = -534
-534 ÷ 554 = -0.9638989169675091
-0.9638989169675091 x 100 = -96.39%