1. The group solvency of the participating insurance or reinsurance undertaking shall be the difference between the following:

(a) the sum of the following:

(i) for undertakings to which method 1 is applied, the own funds eligible to cover the Solvency Capital Requirement, calculated on the basis of consolidated data;

(ii) for each related insurance or reinsurance undertaking to which method 2 is applied, the proportional share of the participating insurance or reinsurance undertaking in the own funds eligible for the Solvency Capital Requirement of the related insurance or reinsurance undertaking;

(iii) the contribution of related undertakings referred to in Article 228(1), calculated in accordance with Article 228(2) or Article 228(4); and

(b) the sum of the following:

(i) for undertakings to which method 1 is applied, the consolidated group Solvency Capital Requirement, calculated in accordance with Article 230(2) on the basis of consolidated data;