121.18% is the change from 321 to 710
Calculation steps:
[( 710 - 321 ) ÷ 321] x 100 = 121.18%
Formula
Percentage change = [(710 - 321) / 321] x 100
Subtract the new number by the original number
710 - 321 = 389
389 ÷ 321 = 1.2118380062305296
1.2118380062305296 x 100 = 121.18%