150% is the change from 66 to 165
Calculation steps:
[( 165 - 66 ) ÷ 66] x 100 = 150%
Formula
Percentage change = [(165 - 66) / 66] x 100
Subtract the new number by the original number
165 - 66 = 99
99 ÷ 66 = 1.5
1.5 x 100 = 150%
Example