Paragraph 3 Altered hereditament—notional chargeable amount
(1)
The notional chargeable amount for a relevant year for an altered hereditament shall be found by applying the formula A × B.
(2)
For the purposes of this paragraph–
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A is the rateable value shown for the hereditament for the day for which it is shown for the first time in the list following its alteration, and
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B is the non-domestic rating multiplier for the relevant year.