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The job hunter preset assumes eight weekly hours, sixty five percent useful automation and four point three three weeks per month. Saved hours are twenty two point five one six. At forty five dollars per hour, assigned time value is one thousand thirteen point two two dollars. A fifteen percent quality uplift adds one hundred fifty one point nine eight three, yielding gross one thousand one hundred sixty five point two zero three. Bars use point one five pixels per modeled dollar. The interface rounds gross to one thousand one hundred sixty five and hours to twenty two point five. These are editable assumptions and an opportunity value calculation, not measured time savings, earned cash, current product price or guaranteed employment outcome. Subtracting forty monthly cost from one thousand one hundred sixty five point two zero three gives net one thousand one hundred twenty five point two zero three. Net divided by forty times one hundred is two thousand eight hundred thirteen point zero zero seven five percent ROI. Payback is forty divided by gross times thirty, about one point zero three days. Bars compare gross and net at point one five pixels per modeled dollar. This denominator makes ROI sensitive to a small subscription cost and does not subtract other implementation, training, correction or opportunity costs unless included in the inputs. No job, apartment, portfolio trade or paid service is executed by this calculator. Setting cost to zero with positive gross makes internal ROI infinity, displayed as No cost rather than a numeric return percentage. Bars compare default forty and zero cost using two point five pixels per dollar. Saved comparison serialization changes nonfinite infinity to null in browser local storage, so persisted data differs from an in-memory infinity while the display remains No cost. Negative net is clamped to zero for chart normalization, then every bar receives a four pixel visual minimum; a short visible bar does not mean positive profit. Native saved rows persist in this browser, reload admits at most twenty stored objects, and the remove control deletes the chosen comparison. Actual paired controls, saved data and responsive layout checks preserve these behaviors without creating a monetary forecast, exhaustive financial validation or public publication.