1. Do you usually have a steady income?
2. Your usual consumption and living standard.
Can the balance of your account cover the cost of going to the destination country?
4. Where you usually live.
Your credit card bill can only show your consumption level, and the other three points can't be displayed. So it can be used as auxiliary information, not just this. I still need you to provide the running bill of the savings card.
Note: Avoid large deposits in the near future.