-90.91% is the change from 957 to 87
Calculation steps:
[( 87 - 957 ) ÷ 957] x 100 = -90.91%
Formula
Percentage change = [(87 - 957) / 957] x 100
Subtract the new number by the original number
87 - 957 = -870
-870 ÷ 957 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%