Using the 50 Percent Rule to Decide Between Repairing and Replacing Your Refrigerator
https://www.livebinders.com/b/3720245?tabid=9d2b78a9-0f64-ebfe-cb1c-bd58c6367ef2
You know it's time to replace your refrigerator when the cost of repair exceeds 50 percent of the price of a new unit—or when your appliance has reached the end of its useful life, typically 10 to 15 years old