Yes—the 24.5% figure is suspect because it multiplies three numbers, ignoring how revenue shares vary by tier, price, and region. A credible estimate needs the full sale distribution: tiered take rates, refunds, taxes, and processing margins; a single mean price isn't representative. With transaction-level data, compute the weighted take: sum(take_rate_i * sale_i) / sum(sale_i), or present a bounded range from the observed distribution.