-11.39% is the change from 948 to 840
Calculation steps:
[( 840 - 948 ) ÷ 948] x 100 = -11.39%
Formula
Percentage change = [(840 - 948) / 948] x 100
Subtract the new number by the original number
840 - 948 = -108
-108 ÷ 948 = -0.11392405063291139
-0.11392405063291139 x 100 = -11.39%