UN Store has confirmed the receipt of stationery from one of its foreign suppliers $($Tharma$)$ on $20$ December $2022$ at a cost of EUR$15,000.$ The invoice was received and paid on $30$ December $2022.$ UN has not accounted for the transaction. The exchange rate at the date of the transaction was $1\mathrm{.}1$EUR:$1$US$ and the date the invoice paid was $0\mathrm{.}95$EUR:$1$US$$.$