-97.6% is the change from 957 to 23
Calculation steps:
[( 23 - 957 ) ÷ 957] x 100 = -97.6%
Formula
Percentage change = [(23 - 957) / 957] x 100
Subtract the new number by the original number
23 - 957 = -934
-934 ÷ 957 = -0.9759665621734587
-0.9759665621734587 x 100 = -97.6%