Mogul oil company will sell $9000$ barrels of oil in $2$ months. Suppose Mogul hedges the risk by selling futures on $7200\mathrm{.}0$ barrels of oil. The current oil futures price is $$21\mathrm{.}1$ dollars per barrel. If in $2$ months the spot price of oil is $$20\mathrm{.}5$ and the futures price is $$21\mathrm{.}8$ per barrel, what is Mogul's gain on the futures transaction and effective price per barrel?