ASP.NET MVC: Model Binding problem

Question

I’m passing an object that has following property to Action:

{
    ...
    Valor : "3500.00"
}

Financapessoalviewmodel:

public class FinancaPessoalViewModel
{
    ...
    public decimal Valor { get; set; }
}

Action:

[HttpPost]
public ActionResult AdicionarLancamento(FinancaPessoalViewModel financa)
{
    var errors = ModelState.Values.SelectMany(v => v.Errors);
    //The value '3500.00' is not valid for Valor.
    ...
}

It is always coming 0 to the property "Value", he is unable to do Binding. How to fix this?