-99.28% is the change from 978 to 7
Calculation steps:
[( 7 - 978 ) ÷ 978] x 100 = -99.28%
Formula
Percentage change = [(7 - 978) / 978] x 100
Subtract the new number by the original number
7 - 978 = -971
-971 ÷ 978 = -0.9928425357873211
-0.9928425357873211 x 100 = -99.28%