-30.03% is the change from 979 to 685
Calculation steps:
[( 685 - 979 ) ÷ 979] x 100 = -30.03%
Formula
Percentage change = [(685 - 979) / 979] x 100
Subtract the new number by the original number
685 - 979 = -294
-294 ÷ 979 = -0.3003064351378958
-0.3003064351378958 x 100 = -30.03%