105.31% is the change from 320 to 657
Calculation steps:
[( 657 - 320 ) ÷ 320] x 100 = 105.31%
Formula
Percentage change = [(657 - 320) / 320] x 100
Subtract the new number by the original number
657 - 320 = 337
337 ÷ 320 = 1.053125
1.053125 x 100 = 105.31%