Beto Perez Zumba Dance Studio $($Beto$)$ located in Carlton owes $$2500$ in tax payable to the Australian Taxation Office $($ATO$)$ at the end of June. In the month of July, the tax expense is $$400.$ At the start of August, Beto pays $$2000$ to the ATO.

What amount, if any, is still owing by Beto to the ATO after the payment of $$2000$ is made?