211.18% is the change from 161 to 501
Calculation steps:
[( 501 - 161 ) ÷ 161] x 100 = 211.18%
Formula
Percentage change = [(501 - 161) / 161] x 100
Subtract the new number by the original number
501 - 161 = 340
340 ÷ 161 = 2.111801242236025
2.111801242236025 x 100 = 211.18%