-10.01% is the change from 689 to 620
Calculation steps:
[( 620 - 689 ) ÷ 689] x 100 = -10.01%
Formula
Percentage change = [(620 - 689) / 689] x 100
Subtract the new number by the original number
620 - 689 = -69
-69 ÷ 689 = -0.10014513788098693
-0.10014513788098693 x 100 = -10.01%