104.67% is the change from 321 to 657
Calculation steps:
[( 657 - 321 ) ÷ 321] x 100 = 104.67%
Formula
Percentage change = [(657 - 321) / 321] x 100
Subtract the new number by the original number
657 - 321 = 336
336 ÷ 321 = 1.0467289719626167
1.0467289719626167 x 100 = 104.67%