271.11% is the change from 180 to 668
Calculation steps:
[( 668 - 180 ) ÷ 180] x 100 = 271.11%
Formula
Percentage change = [(668 - 180) / 180] x 100
Subtract the new number by the original number
668 - 180 = 488
488 ÷ 180 = 2.7111111111111112
2.7111111111111112 x 100 = 271.11%