This table also contains the derived series for the annual rate of change. This is based on the normal series but without the effect of changes in the rates of product-related taxes (for instance VAT ...

Annual rate of change can be defined as the year-on-year change of total consumer expenditure. These figures are shown for 338 product groups in 2025. Furthermore, 34 combinations of product groups ...

{time~taken}\) \(mean~rate~of~reaction = \frac{quantity~of~product~formed}{time~taken}\) The rate of reaction can be analysed by plotting a graph of mass or volume of product formed against time.