150% is the change from 54 to 135
Calculation steps:
[( 135 - 54 ) ÷ 54] x 100 = 150%
Formula
Percentage change = [(135 - 54) / 54] x 100
Subtract the new number by the original number
135 - 54 = 81
81 ÷ 54 = 1.5
1.5 x 100 = 150%
Example