302.41% is the change from 166 to 668
Calculation steps:
[( 668 - 166 ) ÷ 166] x 100 = 302.41%
Formula
Percentage change = [(668 - 166) / 166] x 100
Subtract the new number by the original number
668 - 166 = 502
502 ÷ 166 = 3.0240963855421685
3.0240963855421685 x 100 = 302.41%