167.7% is the change from 161 to 431
Calculation steps:
[( 431 - 161 ) ÷ 161] x 100 = 167.7%
Formula
Percentage change = [(431 - 161) / 161] x 100
Subtract the new number by the original number
431 - 161 = 270
270 ÷ 161 = 1.6770186335403727
1.6770186335403727 x 100 = 167.7%