-99.28% is the change from 971 to 7
Calculation steps:
[( 7 - 971 ) ÷ 971] x 100 = -99.28%
Formula
Percentage change = [(7 - 971) / 971] x 100
Subtract the new number by the original number
7 - 971 = -964
-964 ÷ 971 = -0.9927909371781668
-0.9927909371781668 x 100 = -99.28%