-29.62% is the change from 979 to 689
Calculation steps:
[( 689 - 979 ) ÷ 979] x 100 = -29.62%
Formula
Percentage change = [(689 - 979) / 979] x 100
Subtract the new number by the original number
689 - 979 = -290
-290 ÷ 979 = -0.296220633299285
-0.296220633299285 x 100 = -29.62%