(1) Subject to section 135, the voting share of each creditor shall be in proportion to the debt owed to such creditor. (2) The voting share of a secured creditor shall be in proportion to unsecured part of the debt, if any, if it has opted to enforce its security interest. (3) The voting share of a secured creditor who has opted to relinquish its security interest shall be in proportion to the amount of debt relinquished.