SodaPro sells flavored water products to customers. SodaPro offers a promotion whereby current customers can receive $$10$ off their next purchase of a pallet of water, which retails for $$300.$ This $$10$ promotion can only be redeemed once for each customer order. A convenience store places an order on $1/1/$X$1$ for two pallets of water and requests that the promotion be applied to its purchase. SodaPro delivers the product on $1/3/$X$1.$ Research and document the appropriate accounting by SodaPro for this transaction.