Own funds are basic own funds (excess of assets over liabilities, less own shares held, plus subordinated liabilities) and ancillary own funds (items that can be called up to absorb losses, such as unpaid capital, letters of credit, guarantees or mutual supplementary calls). The amounts of ancillary items counted require prior supervisory approval of an amount or method, based on counterparty ability and willingness to pay, recoverability and past call experience.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.