162.2% is the change from 254 to 666
Calculation steps:
[( 666 - 254 ) ÷ 254] x 100 = 162.2%
Formula
Percentage change = [(666 - 254) / 254] x 100
Subtract the new number by the original number
666 - 254 = 412
412 ÷ 254 = 1.6220472440944882
1.6220472440944882 x 100 = 162.2%