-96.28% is the change from 538 to 20
Calculation steps:
[( 20 - 538 ) ÷ 538] x 100 = -96.28%
Formula
Percentage change = [(20 - 538) / 538] x 100
Subtract the new number by the original number
20 - 538 = -518
-518 ÷ 538 = -0.9628252788104089
-0.9628252788104089 x 100 = -96.28%