A profit of $20\%$ on all sub$-$contractors costs and $15\%$ on procurement costs to all jobs, $6\%$ contingency to all Work Package cost estimates and $8\%$ risk to the whole project costs should be added.A profit of $20\%$ on all sub$-$contractors costs and $15\%$ on procurement costs to all jobs, $6\%$ contingency to all Work Package cost estimates and $8\%$ risk to the whole project costs should be added.