-98.06% is the change from 930 to 18
Calculation steps:
[( 18 - 930 ) ÷ 930] x 100 = -98.06%
Formula
Percentage change = [(18 - 930) / 930] x 100
Subtract the new number by the original number
18 - 930 = -912
-912 ÷ 930 = -0.9806451612903225
-0.9806451612903225 x 100 = -98.06%