-84.54% is the change from 194 to 30
Calculation steps:
[( 30 - 194 ) ÷ 194] x 100 = -84.54%
Formula
Percentage change = [(30 - 194) / 194] x 100
Subtract the new number by the original number
30 - 194 = -164
-164 ÷ 194 = -0.845360824742268
-0.845360824742268 x 100 = -84.54%