Start with sticker price, subtract sales tax, payment fees, and average discounting. Then remove direct labor minutes, packaging, and expected spoilage. The remaining dollars fund marketing and overhead. This realistic baseline anchors experiments, revealing how many incremental orders your idea must produce to stand proudly on its own.
Before launching a promotion, calculate the additional units required to offset the reduced margin. A twenty percent price cut might demand more than forty percent unit growth depending on costs. If that volume seems implausible, shift to value stacking, time caps, or bundles that preserve perceived quality and contribution.