139.69% is the change from 320 to 767
Calculation steps:
[( 767 - 320 ) ÷ 320] x 100 = 139.69%
Formula
Percentage change = [(767 - 320) / 320] x 100
Subtract the new number by the original number
767 - 320 = 447
447 ÷ 320 = 1.396875
1.396875 x 100 = 139.69%