Figure below gives the heat inflow into the furnace of a waste-to-energy plant along with the heat outflows from the furnace.
Assume: (i) total heat loss equal to $3 \%$ of heat released while burning waste, (ii) sensible heat of the waste is negligible, (iii) complete burning of the waste is ensured. If the waste feed rate into this plant is $70 \mathrm{~kg} / \mathrm{h}$, the heat content of the waste $\text{(in kcal kg, rounded off to one decimal place)}$ is
