Difference between internal and external business finance?

Difference between internal and external business finance?
Internal business finance is departmental charges for productionand such. External business finance concerns transactions that makemoney for the business outside of the organization, such as sales.
Both this financial terms have great impact onrunning business. They are the key and most important differencebetween these two funding options. When a company uses internalfinance, it takes advantage of existing supplies of capital fromprofits and other sources. External finance involves the use ofmoney new to the company, from outside sources, to fund plannedactivities. External finance requires either going into debt orgiving up control and flexibility.