S.C. Code Ann. § 9-13-200

If at any time, from any unforeseen cause, there shall not be sufficient money in any such pension fund to pay each person entitled to the benefit thereof the full amount per month as herein provided, then an equal percentage of such monthly payment shall be made to each beneficiary until the fund shall be replenished sufficiently to warrant the resumption of payment thereafter of full pension pay to each of such beneficiaries, unless the city council shall by direct appropriation supplement the pension fund sufficiently to enable the board of trustees to pay the full amounts per month as herein provided.