-99.28% is the change from 979 to 7
Calculation steps:
[( 7 - 979 ) ÷ 979] x 100 = -99.28%
Formula
Percentage change = [(7 - 979) / 979] x 100
Subtract the new number by the original number
7 - 979 = -972
-972 ÷ 979 = -0.992849846782431
-0.992849846782431 x 100 = -99.28%