أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
<p>I've been adding an amount equal to the penalty in terms of cost from the client for delayed material delivery, however if there are alternatives suggestions would be most welcome.</p>
Penalties are treated as costs but they're not actual costs to the project. Try adding materials or freight costs, etc. those are more direct and definite