DTI – Debt to Income
https://www.lockitlending.com/glossary/debt-to-income
Debt-to-income ratio is a number that creditors, especially mortgage lenders, use to determine how much of your monthly income goes toward paying debt. In order to calculate the back end ratio you need to divide all of your debts by gross monthly pay before taxes and other deductions are taken out. It's important for people who want loans because it tells them what they can afford based on their current finances.