When analyzing passion fruit prices, buyers must look beyond the per-kilogram cost and evaluate the pulp yield and brix level (sugar content). High-quality fruits should have a brix level of 13-18%. Prices fluctuate based on variety; for instance, Purple Passion Fruit (Passiflora edulis) is often priced higher due to its intense aroma and higher demand in the fresh market, while Yellow Passion Fruit is typically more economical for industrial juice processing. Ensure the price includes sorting and grading to avoid paying premium rates for 'B-grade' fruits with skin defects.