-98.03% is the change from 508 to 10
Calculation steps:
[( 10 - 508 ) ÷ 508] x 100 = -98.03%
Formula
Percentage change = [(10 - 508) / 508] x 100
Subtract the new number by the original number
10 - 508 = -498
-498 ÷ 508 = -0.9803149606299213
-0.9803149606299213 x 100 = -98.03%