71. The amount disbursed for the carrying out of the work prescribed in section 69 shall be used to reach the minimum cost of work determined in section 15, 36, 42 or 44.
The amount shall include, in the case of non-remunerated work, an amount equivalent to that which should have been paid for the carrying out of the work. The amount is computed on the basis of the average wages for the performance of similar work in the region where such work is carried out.