Using the 50 Percent Rule to Decide Between Repairing and Replacing Your Refrigerator

https://crankmaster2.gumroad.com/p/regarding-charge-data-reveals-why-your-washing-machine-demands-expert-diagnosis

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