Lenders use the 43% debt-to-income (DTI) ratio as the maximum threshold for loan qualification.
With $75K income and $300/month existing debt, you can afford up to ~$340K in mortgage at 7%.
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A common mistake is misidentifying which formula applies to the specific version of the problem. Many everyday calculations have superficially similar variants that use different formulas — always check which scenario matches your situation.
A traveller converts currency amounts for a trip budget, checking live rates against historical averages to understand whether the current rate is favourable or whether it makes sense to exchange at a different time.
Most lenders require total DTI below 43%. FHA allows up to 50% in some cases. Best rates under 36%.