262.12% is the change from 66 to 239
Calculation steps:
[( 239 - 66 ) ÷ 66] x 100 = 262.12%
Formula
Percentage change = [(239 - 66) / 66] x 100
Subtract the new number by the original number
239 - 66 = 173
173 ÷ 66 = 2.621212121212121
2.621212121212121 x 100 = 262.12%