172.22% is the change from 18 to 49
Calculation steps:
[( 49 - 18 ) ÷ 18] x 100 = 172.22%
Formula
Percentage change = [(49 - 18) / 18] x 100
Subtract the new number by the original number
49 - 18 = 31
31 ÷ 18 = 1.7222222222222223
1.7222222222222223 x 100 = 172.22%