291.93% is the change from 161 to 631
Calculation steps:
[( 631 - 161 ) ÷ 161] x 100 = 291.93%
Formula
Percentage change = [(631 - 161) / 161] x 100
Subtract the new number by the original number
631 - 161 = 470
470 ÷ 161 = 2.919254658385093
2.919254658385093 x 100 = 291.93%