-13.91% is the change from 956 to 823
Calculation steps:
[( 823 - 956 ) ÷ 956] x 100 = -13.91%
Formula
Percentage change = [(823 - 956) / 956] x 100
Subtract the new number by the original number
823 - 956 = -133
-133 ÷ 956 = -0.13912133891213388
-0.13912133891213388 x 100 = -13.91%