-3.63% is the change from 689 to 664
Calculation steps:
[( 664 - 689 ) ÷ 689] x 100 = -3.63%
Formula
Percentage change = [(664 - 689) / 689] x 100
Subtract the new number by the original number
664 - 689 = -25
-25 ÷ 689 = -0.036284470246734396
-0.036284470246734396 x 100 = -3.63%