(1) Relevant entities must calculate the amount of the systemic risk buffer in accordance with the following formula -

where -

"SRB" is the systemic risk buffer;

"RT" is the buffer rate applicable to the amount of the total risk exposure of a relevant entity;

"ET" is the amount of the total risk exposure of the relevant entity calculated in accordance with Article 92(3) of the capital requirements regulation;

"I" is the index denoting the subset of exposures specified by the PRA under regulation 34C(2);

"RI" is the buffer rate applicable to the amount of the risk exposure of I;

"EI" is the risk exposure amount of a relevant entity for I calculated in accordance with Article 92(3) of the capital requirements regulation.

(2) The PRA may require a relevant entity to maintain a systemic risk buffer on -

(a) an individual basis;

(b) a sub-consolidated basis; or

(c) a consolidated basis.