The composition of a municipal solid waste sample is given below:

$\begin{array}{|l|c|c|c|} \hline \text{Component} & \text{Percent by} & \text{Moisture Content} & \text{Energy Content} \\ {} & \text{Mass} & \text{(%)} & \text{kJ/kg, on as-discarded basis} \\ \hline \text{Food Waste} & 20 & 70 & 2500 \\ \hline \text{Paper} & 10 & 4 & 10000 \\ \hline \text{Cardboard} & 10 & 4 & 8000 \\ \hline \text{Plastics} & 10 & 1 & 14000 \\ \hline \text{Garden Trimmings} & 40 & 60 & 3500 \\ \hline \text{Wood} & 5 & 20 & 14000 \\ \hline \text{Tin Cans} & 5 & 2 & 100 \\ \hline \end{array}$

The difference between the energy content of the waste sample calculated on dry basis and as-discarded basis (in kJ/kg) would be _______