-99.08% is the change from 973 to 9
Calculation steps:
[( 9 - 973 ) ÷ 973] x 100 = -99.08%
Formula
Percentage change = [(9 - 973) / 973] x 100
Subtract the new number by the original number
9 - 973 = -964
-964 ÷ 973 = -0.9907502569373073
-0.9907502569373073 x 100 = -99.08%