-89.93% is the change from 298 to 30
Calculation steps:
[( 30 - 298 ) ÷ 298] x 100 = -89.93%
Formula
Percentage change = [(30 - 298) / 298] x 100
Subtract the new number by the original number
30 - 298 = -268
-268 ÷ 298 = -0.8993288590604027
-0.8993288590604027 x 100 = -89.93%