-99.06% is the change from 957 to 9
Calculation steps:
[( 9 - 957 ) ÷ 957] x 100 = -99.06%
Formula
Percentage change = [(9 - 957) / 957] x 100
Subtract the new number by the original number
9 - 957 = -948
-948 ÷ 957 = -0.9905956112852664
-0.9905956112852664 x 100 = -99.06%