121.81% is the change from 321 to 712
Calculation steps:
[( 712 - 321 ) ÷ 321] x 100 = 121.81%
Formula
Percentage change = [(712 - 321) / 321] x 100
Subtract the new number by the original number
712 - 321 = 391
391 ÷ 321 = 1.2180685358255452
1.2180685358255452 x 100 = 121.81%