Your credit report is generated by three major companies and provides information on how much you owe to various creditors, your payment history for bills and expenses, and other factors that determine your FICO credit score. A FICO score ranges from 760 to 620 and is calculated based on your payment history (35%), amounts owed (30%), length of credit history (15%), new credit (10%), and credit types (10%). To improve your score, you should pay all bills on time, avoid opening multiple new accounts unless needed, keep credit utilization below 25%, and review your credit report yearly.