107.17% is the change from 321 to 665
Calculation steps:
[( 665 - 321 ) ÷ 321] x 100 = 107.17%
Formula
Percentage change = [(665 - 321) / 321] x 100
Subtract the new number by the original number
665 - 321 = 344
344 ÷ 321 = 1.071651090342679
1.071651090342679 x 100 = 107.17%