Figures are from:

• Average number of people per household (East Midlands 2021 ONS Data)
• YouGov Plc. Total sample size was 2,061 adults. Fieldwork was undertaken between 19th-20th April 2018. The survey was carried out online. The figures have been weighted and are representative of all UK adults (aged 18+).
• Poll conducted by Opinium Research. Total sample size was 2507 UK adults (including a boost of 507 in the East of England). Fieldwork was undertaken between 22 March 2022 - 25 March 2022. The survey was carried out online.
• Water charges based on standard rates published here for 2022-23.
• Energy costs based on Energy Saving Trust data cited 2019 and Money Saving Expert data updated 09 January 2023
• "Energy Trust: At home with water" - At Home with Water (energysavingtrust.org.uk)
   

The £260 million/year figure includes £119.3m in water bills and £141m in energy bills to heat the water. This is based on the following calculation:

The £104.10/year figure includes £47.70 in water bills and £56.40 in energy bills to heat the water. This is based on the following calculation: