Derogatory Marks: While derogatory marks such as bankruptcies or collections can significantly impact your credit score, they are not the single largest component.
Payment History: This is the most significant factor in your FICO score, accounting for about 35% of the total score. It reflects whether you have paid past credit accounts on time.
Credit Utilization: This is the second most important factor, making up about 30% of your FICO score. It measures the amount of credit you are using compared to your total available credit.
Amount of Debt: This factor is related to credit utilization but is not as impactful as payment history. It includes the total amount of debt you owe across all credit accounts.