The financing for a large construction project was provided by a bank. When the funds were used up before the completion of the project, the bank approved further loans. Now, as the funds are used up again and the project is still not completed, the bank refuses to provide further loans, although the project will fall through without these loans.
The bank reassessed the potential income of the completed project and concluded that the total income that the project can generate will be lower than the total interest of the old loans plus the new ones best explains why the bank's current reaction is different from their previous.