114.69% is the change from 320 to 687
Calculation steps:
[( 687 - 320 ) ÷ 320] x 100 = 114.69%
Formula
Percentage change = [(687 - 320) / 320] x 100
Subtract the new number by the original number
687 - 320 = 367
367 ÷ 320 = 1.146875
1.146875 x 100 = 114.69%