15. A person who, on any day in a financial year, was the occupier of land under a lease, the terms of which authorised the carrying of stock on the land, is liable to pay, in respect of that year, a stock levy calculated in accordance with the formula—
where—
UL is the levy for 1 stock unit determined under section 13 ;
SCC is the stock carrying capacity, expressed in stock units, of the land, as determined by the Controller under section 14;
DO is the number of days in that year on which the person was the occupier.