-1.19% is the change from 841 to 831
Calculation steps:
[( 831 - 841 ) ÷ 841] x 100 = -1.19%
Formula
Percentage change = [(831 - 841) / 841] x 100
Subtract the new number by the original number
831 - 841 = -10
-10 ÷ 841 = -0.011890606420927468
-0.011890606420927468 x 100 = -1.19%