241.61% is the change from 161 to 550
Calculation steps:
[( 550 - 161 ) ÷ 161] x 100 = 241.61%
Formula
Percentage change = [(550 - 161) / 161] x 100
Subtract the new number by the original number
550 - 161 = 389
389 ÷ 161 = 2.4161490683229814
2.4161490683229814 x 100 = 241.61%