-96.66% is the change from 898 to 30
Calculation steps:
[( 30 - 898 ) ÷ 898] x 100 = -96.66%
Formula
Percentage change = [(30 - 898) / 898] x 100
Subtract the new number by the original number
30 - 898 = -868
-868 ÷ 898 = -0.9665924276169265
-0.9665924276169265 x 100 = -96.66%