The capacity to aculate and recognize the profitability of deal-of-the-day promotions (DoDs) is of important significance for traders. It is likewise difficult as it calls for those traders to keep in mind lengthy-term, cross-selling, and cannibalization results and choose the correct bargain for the promotion. The authors broaden and enforce a version as a unfastened on-line calculator to assist traders to decide the income they could generate from those promotions. This calculator evaluated nearly 3,seven-hundred DoDs from the traders’ and providers’ perspectives. To advantage perception at the anticipated profitability of DoDs, the authors analyzed 627 of those deliberate promotions and 30 found out promotions. The outcomes imply that two-thirds of the deliberate and all found out DoDs are anticipated to be worthwhile withinside the lengthy term. Yet, DoDs are not likely to repay withinside the brief term. The findings additionally display that unredeemed coupons strongly growth income, specifically the ones of the provider.