-7.55% is the change from 689 to 637
Calculation steps:
[( 637 - 689 ) ÷ 689] x 100 = -7.55%
Formula
Percentage change = [(637 - 689) / 689] x 100
Subtract the new number by the original number
637 - 689 = -52
-52 ÷ 689 = -0.07547169811320754
-0.07547169811320754 x 100 = -7.55%