A brand new Michael kors purse slash side bag

It's a black brand new Michael kors purse slash side bag and it's got the tag numbers to make sure it's real and it's got the price tag still on it and stuffing still inside its never been used just bought it was originally $647.00 marked down to $478.00.. I'm not asking that much it's just what I payed I'm asking 300.00 or best offer