-96.29% is the change from 808 to 30
Calculation steps:
[( 30 - 808 ) ÷ 808] x 100 = -96.29%
Formula
Percentage change = [(30 - 808) / 808] x 100
Subtract the new number by the original number
30 - 808 = -778
-778 ÷ 808 = -0.9628712871287128
-0.9628712871287128 x 100 = -96.29%