205.5% is the change from 218 to 666
Calculation steps:
[( 666 - 218 ) ÷ 218] x 100 = 205.5%
Formula
Percentage change = [(666 - 218) / 218] x 100
Subtract the new number by the original number
666 - 218 = 448
448 ÷ 218 = 2.055045871559633
2.055045871559633 x 100 = 205.5%