The UK pays a rebated EU membership fee of £280 million a week.
— James Melville 🚜 (@JamesMelville) September 16, 2019
According to the Institute of Fiscal Studies, UK membership of the EU single market is worth 4% more in GDP = £1.9 billion a week.
EU membership means a UK net gain of over £1.6 billion a week.
Put that on a bus.