Apportionment of livestock units
4. Where any holding in respect of which a claim has been made is situated partly outside England, the number of livestock units grazed on that part of the holding which is situated in England shall be calculated as follows—
N = TLU × X ÷ Y
where—
“X” is the claimed forage area in hectares of that part of the holding which is situated in England;
“Y” is the total claimed forage area in hectares of that holding;
“TLU” is the total number of livestock units grazed on that holding; and
“N” is the number of livestock units grazed on that part of the holding situated in England.