329.58% is the change from 71 to 305
Calculation steps:
[( 305 - 71 ) ÷ 71] x 100 = 329.58%
Formula
Percentage change = [(305 - 71) / 71] x 100
Subtract the new number by the original number
305 - 71 = 234
234 ÷ 71 = 3.295774647887324
3.295774647887324 x 100 = 329.58%