-93.98% is the change from 498 to 30
Calculation steps:
[( 30 - 498 ) ÷ 498] x 100 = -93.98%
Formula
Percentage change = [(30 - 498) / 498] x 100
Subtract the new number by the original number
30 - 498 = -468
-468 ÷ 498 = -0.9397590361445783
-0.9397590361445783 x 100 = -93.98%