-19.51% is the change from 979 to 788
Calculation steps:
[( 788 - 979 ) ÷ 979] x 100 = -19.51%
Formula
Percentage change = [(788 - 979) / 979] x 100
Subtract the new number by the original number
788 - 979 = -191
-191 ÷ 979 = -0.195097037793667
-0.195097037793667 x 100 = -19.51%