107.19% is the change from 320 to 663
Calculation steps:
[( 663 - 320 ) ÷ 320] x 100 = 107.19%
Formula
Percentage change = [(663 - 320) / 320] x 100
Subtract the new number by the original number
663 - 320 = 343
343 ÷ 320 = 1.071875
1.071875 x 100 = 107.19%