121.5% is the change from 321 to 711
Calculation steps:
[( 711 - 321 ) ÷ 321] x 100 = 121.5%
Formula
Percentage change = [(711 - 321) / 321] x 100
Subtract the new number by the original number
711 - 321 = 390
390 ÷ 321 = 1.2149532710280373
1.2149532710280373 x 100 = 121.5%