You must not

http://www.projeqtor.org/index.php/forum/3-propose-evolutions/5695-reste-n%C3%A9gatif-negative-rest

Mais cela est il possible pour le cout, car pour nous c'est de savoir ce qu'il reste une fois le travail fini, dont la différence entre l'assigné et le réel, le montant planifier et juste une information, qui en cas de dépassement (réel > assigné) et faux.

Comme dans l'exemple il y a plus de réel que d'assigné donc il ne devrais plus y avoir de reste

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But it is it possible for the cost, because for us it is to know what there once remains finished job, difference of which enters the allocating and the real, sum to plan and just an information, that in case of overtaking (real> allocated) and falsehood.

As in example there is more real than allocating therefore it should no more have rest there

Once again, left cannot be negative.
Left cost = left work * resource cost.
Only thing that can tell you that work is finished is "left=0"
NEVER TRY AND PLAY WITH LEFT CALCULATION.
Left must be estimated by resource.
When left = 0, work is finished.

What you are expecting is gain : assigned - planned = assigned - (real + left).
When left=0 (work is finished), then gain = assigned - real

You can get an overview of what you expect : Expected progress = planned / validated

As in example there is more real than allocating therefore it should no more have rest there

If resource conciders there is some left work, then work IS NOT FINISHED !!!