<![CDATA[This study examines the relationship between unit price and store category and the sales of Prove D3 Drops listed on the Tokopedia marketplace. The study uses a quantitative approach with an explanatory associative design and cross-sectional analysis. The population consists of Prove D3 Drops listings observed on Tokopedia during December 2025 to February 2026. The inferential analysis uses 898 unique listings from the February 2026 snapshot after URL checking and data cleaning. The data are secondary data collected through web scraping and contain unit price, units sold, and store category. Store category consists of Official Store, Power Shop, and Toko Biasa, with Toko Biasa used as the reference category through dummy coding. Because the sales variable is highly right-skewed, the main model uses ln(sales + 1) and ln(price), with HC3 robust standard errors. The results show that price has a negative and significant relationship with sales. The coefficient of ln(price) is -0.815 with HC3 t = -6.142 and p < 0.001. Official Store and Power Shop do not show significant partial differences from Toko Biasa, with p = 0.474 and p = 0.501. The omnibus model test is significant, with Likelihood Ratio Chi-Square = 36.532, df = 3, p < 0.001. The model explains 4.0% of the variation in the transformed sales measure. The findings provide stronger empirical support for the economic signal represented by price than for store-category labels in this dataset.Keywords : unit price, store category, sales volume, web scraping, Tokopedia, Prove D3 Drops]]>
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