183.33% is the change from 18 to 51
Calculation steps:
[( 51 - 18 ) ÷ 18] x 100 = 183.33%
Formula
Percentage change = [(51 - 18) / 18] x 100
Subtract the new number by the original number
51 - 18 = 33
33 ÷ 18 = 1.8333333333333333
1.8333333333333333 x 100 = 183.33%