While from the Fifth Circuit rather than the Dallas Court of Appeals, a recent case notes a fundamental principle in business litigation under Texas law. In it, that Court affirmed a JNOV motion on damages, under Texas law, when the plaintiff proved gross profits rather than net profits. “Its expert witness testified that he used ThermoTek’s gross profit margin—gross sales, less the cost of those goods sold, divided by gross sales—to calculate lost profits. He then stated that he reached his lost-profit totals for the VascuTherm units and wraps by (1) multiplying the average sales ThermoTek made to Wilford each month by the unit sales price and relevant time period, and (2) deducting the cost of the goods sold. But that is the very definition of gross profits. See Black’s Law Dictionary, supra (defining gross profits as “[t]otal sales revenue less the cost of the goods sold, no adjustment being made for additional expenses and taxes”). Motion Medical Technologies v. Thermotek, No. 16-11381 (Nov. 14, 2017).