-99.02% is the change from 508 to 5
Calculation steps:
[( 5 - 508 ) ÷ 508] x 100 = -99.02%
Formula
Percentage change = [(5 - 508) / 508] x 100
Subtract the new number by the original number
5 - 508 = -503
-503 ÷ 508 = -0.9901574803149606
-0.9901574803149606 x 100 = -99.02%