WHAT EFFECTS YOUR CREDIT SCORE? 

35% of your credit score is based on payment history. Your payment history is based on the number of accounts that you have paid as agreed and/or paid delinquent. A delinquent account is determined either, 30, 60, or 90 days past due and each late payment is marked and followed accordingly. Your payment history also includes any negative public records or collections that you may have. 

30% is based on amounts that you owe and the number of accounts that have a zero balance. There are two main types of credit accounts, Revolving credit and Installment credit. Revolving credit is unsecured credit such as credit cards and signature loans. They compare these balances to your credit limits looking for indications that you are over extended. Installment credit is secured credit like mortgage loans and auto loans and they compare these balances to the original loan amount to make sure you are paying them down consistently. 

15% is based on the length of your credit history looking at things like the total length of time tracked by your credit report, how long it has been since your last credit activity, and how long each account was open for. 

10% is based on the number of new accounts that have been opened compared to the total accounts on your credit report. They also look at the number of new inquiries compared to new accounts opened. 

The final 10% is based on the credit types and the total number of credit accounts. A good mixture of revolving and installment credit accounts makes for a better score.