7.99% is the change from 638 to 689
Calculation steps:
[( 689 - 638 ) ÷ 638] x 100 = 7.99%
Formula
Percentage change = [(689 - 638) / 638] x 100
Subtract the new number by the original number
689 - 638 = 51
51 ÷ 638 = 0.07993730407523511
0.07993730407523511 x 100 = 7.99%