Lots of threads on here where people share their weekly or monthly spending but as it's relative to their income I thought this might be an interesting comparison.
We currently spend 15% of our household income on groceries (all food, cleaning, beer, wine, and toiletries) and 9% on gas and electricity.
Our annual household income is in the lowest 40% according to this calculator
https://www.ons.gov.uk/peoplepopulationandcommunity/personalandhouseholdfinances/incomeandwealth/bulletins/householddisposableincomeandinequality/financialyearending2021