217.39% is the change from 161 to 511
Calculation steps:
[( 511 - 161 ) ÷ 161] x 100 = 217.39%
Formula
Percentage change = [(511 - 161) / 161] x 100
Subtract the new number by the original number
511 - 161 = 350
350 ÷ 161 = 2.1739130434782608
2.1739130434782608 x 100 = 217.39%