The breakdown of a credit score’s calculations is 35% from how responsibly you pay your bills, 30% is how much credit you presently have and what is the percentage that you have used up. Another 15% is how old your credit associations are, for example how long you have had your credit cards. The last 20% is split between how recent you have asked about or opened a new account and what your file consists of such as what percent is installment debt and what’s bankcard debt.