-12.13% is the change from 956 to 840
Calculation steps:
[( 840 - 956 ) ÷ 956] x 100 = -12.13%
Formula
Percentage change = [(840 - 956) / 956] x 100
Subtract the new number by the original number
840 - 956 = -116
-116 ÷ 956 = -0.12133891213389121
-0.12133891213389121 x 100 = -12.13%