-13.9% is the change from 957 to 824
Calculation steps:
[( 824 - 957 ) ÷ 957] x 100 = -13.9%
Formula
Percentage change = [(824 - 957) / 957] x 100
Subtract the new number by the original number
824 - 957 = -133
-133 ÷ 957 = -0.13897596656217345
-0.13897596656217345 x 100 = -13.9%