The percentage shall be expressed at the time the horizontal property regime is constituted, shall have a permanent character, and shall not be altered without the acquiescence of the co-owners representing all the apartments of the property.
The basic value, which shall be fixed for the sole purpose of this chapter and irrespectively of the actual value, shall not prevent each co-owner from fixing a different circumstantial value to his apartment in all types of acts and contracts.
S.C. Code § 27-31-60