1150% is the change from 18 to 225
Calculation steps:
[( 225 - 18 ) ÷ 18] x 100 = 1150%
Formula
Percentage change = [(225 - 18) / 18] x 100
Subtract the new number by the original number
225 - 18 = 207
207 ÷ 18 = 11.5
11.5 x 100 = 1150%
Example