Throughout Sealed-System Specs, the 50 Percent Repair Cost Threshold Determines Appliance Replacement Decisions

https://blogfreely.net/beliasmptu/h1-b-underneath-the-diagnostic-fee-lies-the-truth-about-your-appliance-repair

The 50 rule for appliance repair states that when repair costs exceed 50 percent of the appliance's replacement price, replacement typically becomes the better choice