£k: Thousands of pounds
Accounting amortisation: The decreasing of an amount over time for accounting purposes
Accrued: An account that has occurred but as yet remains unpaid
Active periods: Time periods when the event in question is active, often the concession or project itself
Actual historic values: The achieved values describing the finances of a company or entity emanating from the past
Add: Used to denote that summation formula will add this line-item
Addbk: Used to denote that summation formula will ...