2.69% is the change from 669 to 687
Calculation steps:
[( 687 - 669 ) ÷ 669] x 100 = 2.69%
Formula
Percentage change = [(687 - 669) / 669] x 100
Subtract the new number by the original number
687 - 669 = 18
18 ÷ 669 = 0.026905829596412557
0.026905829596412557 x 100 = 2.69%