[9A(1)A special authority’s small business non-domestic rating multiplier for a chargeable financial year shall be set by it in accordance with the formula—E+W
(2)In sub-paragraph (1) above—
(a)A is the special authority’s non-domestic rating multiplier for the year under paragraph 9 above,
(b)B is the small business non-domestic rating multiplier for the year determined in accordance with [Part A1] of this Schedule, and
(c)C is the non-domestic rating multiplier for the year ... determined in accordance with that Part.
(3)The multiplier must be expressed as a figure in which a part of a whole (if any) is expressed to three decimal points only.]