Additional compulsory share

If a person entitled to a compulsory share is left a share of the inheritance which is less than one-half of the intestate portion, then the person entitled to a compulsory share may claim from the co-heirs as his or her compulsory share the amount by which his or her share is less than one-half. Limitations and charges of the nature referred to in section 2306 are not taken into consideration when calculating the value.