178.33% is the change from 240 to 668
Calculation steps:
[( 668 - 240 ) ÷ 240] x 100 = 178.33%
Formula
Percentage change = [(668 - 240) / 240] x 100
Subtract the new number by the original number
668 - 240 = 428
428 ÷ 240 = 1.7833333333333334
1.7833333333333334 x 100 = 178.33%