In exercising the above mentioned power the board may, in conformity with this Chapter, reverse or affirm, wholly or partly, or may modify the order, requirement, decision or determination appealed from, and may make such order, requirement, decision or determination as ought to be made. The concurring vote of a majority of the members of the board of commissioners shall be necessary to reverse any order, requirement, decision or determination, or to decide in favor of the applicant on any matter upon which it is required to pass under any rule, regulation or restriction or to effect any variation in such rules, regulations or restrictions.
La. R.S. § 33:7559