At Pharoah Company, there are $715$ units of ending work in process that are $100\%$ complete as to materials and $40\%$ complete as to conversion costs. If the unit cost of materials is $$3$ and the total costs assigned to the $715$ units is $$5,291,$ what is the per unit conversion cost? $($Round answer to $2$ decimal places, e$.$g$.2\mathrm{.}25.)$

Per unit conversion cost

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