-1.07% is the change from 844 to 835
Calculation steps:
[( 835 - 844 ) ÷ 844] x 100 = -1.07%
Formula
Percentage change = [(835 - 844) / 844] x 100
Subtract the new number by the original number
835 - 844 = -9
-9 ÷ 844 = -0.01066350710900474
-0.01066350710900474 x 100 = -1.07%