-7.77% is the change from 669 to 617
Calculation steps:
[( 617 - 669 ) ÷ 669] x 100 = -7.77%
Formula
Percentage change = [(617 - 669) / 669] x 100
Subtract the new number by the original number
617 - 669 = -52
-52 ÷ 669 = -0.07772795216741404
-0.07772795216741404 x 100 = -7.77%