-60.06% is the change from 979 to 391
Calculation steps:
[( 391 - 979 ) ÷ 979] x 100 = -60.06%
Formula
Percentage change = [(391 - 979) / 979] x 100
Subtract the new number by the original number
391 - 979 = -588
-588 ÷ 979 = -0.6006128702757916
-0.6006128702757916 x 100 = -60.06%