800% is the change from 18 to 162
Calculation steps:
[( 162 - 18 ) ÷ 18] x 100 = 800%
Formula
Percentage change = [(162 - 18) / 18] x 100
Subtract the new number by the original number
162 - 18 = 144
144 ÷ 18 = 8
8 x 100 = 800%
Example