QUICK ANSWER
Is a $2,500 repair worth it on a $7,000 car?
A $2,500 repair equals about 35.7% of a $7,000 vehicle's current value. That percentage is useful context, but it does not decide the repair by itself.
$2,500 ÷ $7,000 × 100 ≈ 35.7%
Think beyond the percentage
Consider expected useful life after the repair, safety, reliability, other likely repairs, financing costs, insurance, and what a replacement vehicle would actually cost.
Monthly perspective
If the repair realistically buys 24 additional months of useful life, the repair cost works out to about $104 per added month before considering other ownership costs.