Your credit report is generated by Experian, Equifax, and Trans Union and includes information on how much you owe different companies, your payment history, and other debts. Your FICO credit score ranges from 760 to 620 and is calculated based on your payment history (35%), amount owed (30%), credit history length (15%), new credit (10%), and credit types (10%). To improve your score, you should pay your bills on time, avoid opening too many new accounts, keep credit balances low at less than 25% of the credit limit, and review your credit report yearly.