With a bank statement your sponsor (e.g. your parents) proves that he is not only willing but also able to support you financially in the specified amount. The Bank Statement must be issued and signed by the sponsor's bank. On the Bank Statement you show the amount of your own contribution and add costs for flights and pocket money. So you do not show the real costs, but something more. The Bank Statement can also be issued higher, it has no influence on the amount of your scholarship. The university only needs it to prove to the immigration authorities that all students are financially secure.

For example, a bank statement could look like this: