109.35% is the change from 321 to 672
Calculation steps:
[( 672 - 321 ) ÷ 321] x 100 = 109.35%
Formula
Percentage change = [(672 - 321) / 321] x 100
Subtract the new number by the original number
672 - 321 = 351
351 ÷ 321 = 1.0934579439252337
1.0934579439252337 x 100 = 109.35%