The 5 c's of credit still apply. Look them up if you haven't heard that phrase.
There are too many factors to give you a decent answer.
How much money do you need according to your business plan?
How much have you raised already? (do you have skin in the game? a.k.a your own money at risk)
How much are you looking to borrow?
Do you have collateral?
Do you have a comprehensive, well researched business plan ?
What is your credit score?
Do you have experience in the industry, at managing a business or other relevant skills for this business?
Go to a SCORE Chapter or a Small Business Development Center in your state (assuming you are from the US) and get some mentoring services.
There are lenders that will loan to small businesses that are not "bank ready," such as Community Development Financial Institutions." They make smaller loans, under $50,000 to credit worthy businesses. If you need to raise more money the requirements will be more stringent since the risk exposure will be more. Depending on the amount needed to raise other institutions might be a better bet.
The amount of money you will need to put in varies depending on the loan program, but a bank will want 20% minimum. Some of the non-traditional lenders may accept less. However when I refer to nontraditional lenders I mean CDFIs and other nonprofit, government supported lenders NOT the for-profit fee only lenders whose cost of capital could kill you business before you even get started. Understand the terms of the loan before you accept a loan form those folks, understand what it will actually cost you.