7(1)The fraction isE+W
where
X is the residue of the term of the tenancy at the date of the assignment, and
Y is the term for which the tenancy was granted.
(2)Sub-paragraph (1) above shall apply where a tenancy has been assigned as it applies where a tenancy has been granted and then Y in the fraction shall be the residue, at the date of that assignment, of the term for which the tenancy was granted.