UNRWA balances its budget... by selling food?

You would think with all the billions of dollars in international aid money that UNRWA gets for re-settling 'Palestinian refugees' keeping the 'Palestinians' as 'refugees,' UNRWA would at least be able to balance its budget. You'd be wrong. The 'Palestinian Authority' in Gaza is claiming that - like Hamas - UNRWA is selling food on the commercial market. But this time the food apparently is not