Price from your costs and the event, not from the tent next door.
Start with your true cost per cup: fruit, syrup, cup, lid, straw, ice, water.
Aim to keep product cost at or under roughly 25–30% of your price. That margin is what pays the vendor fee, the labor and the drive.
Then sanity-check against the event. A city festival supports a higher price than a small neighborhood market. Same drink, different day.
One clean price for one size beats a confusing three-tier menu — it speeds up your line, and line speed is revenue.
Discounting to create a line is a trap. Speed and a good sign create the line.
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