-9.09% is the change from 979 to 890
Calculation steps:
[( 890 - 979 ) ÷ 979] x 100 = -9.09%
Formula
Percentage change = [(890 - 979) / 979] x 100
Subtract the new number by the original number
890 - 979 = -89
-89 ÷ 979 = -0.09090909090909091
-0.09090909090909091 x 100 = -9.09%