159.09% is the change from 66 to 171
Calculation steps:
[( 171 - 66 ) ÷ 66] x 100 = 159.09%
Formula
Percentage change = [(171 - 66) / 66] x 100
Subtract the new number by the original number
171 - 66 = 105
105 ÷ 66 = 1.5909090909090908
1.5909090909090908 x 100 = 159.09%