-12.64% is the change from 957 to 836
Calculation steps:
[( 836 - 957 ) ÷ 957] x 100 = -12.64%
Formula
Percentage change = [(836 - 957) / 957] x 100
Subtract the new number by the original number
836 - 957 = -121
-121 ÷ 957 = -0.12643678160919541
-0.12643678160919541 x 100 = -12.64%