166.39% is the change from 241 to 642
Calculation steps:
[( 642 - 241 ) ÷ 241] x 100 = 166.39%
Formula
Percentage change = [(642 - 241) / 241] x 100
Subtract the new number by the original number
642 - 241 = 401
401 ÷ 241 = 1.6639004149377594
1.6639004149377594 x 100 = 166.39%