Multiply Your Appliance's Age by 100 to Decide if Replacement Outweighs Repair Costs
https://urgent-appliance-repair-95816.cavandoragh.org/quick-response-windows-keep-appliance-fixes-under-500-and-avoid-replacement-costs
The 50% rule is a straightforward cost-ratio workflow that answers when replacement beats repair. Multiply your appliance's age in years by 100, then compare that number to the repair cost