Discount on cheaper product

Hi

Thank you for reaching out.
You will need to configure two rules

1. 15% for cheapest product in the cart. Here is a guide with a similar example. NOTE: You will just need to create one range for your case. https://docs.flycart.org/en/articles/1986914-get-50-discount-on-the-cheapest-item-in-the-cart

2. 25% when 3 or more products in cart. Just set up a simple percentage discount with the min quantity range starting from 3. Here is a guide: https://docs.flycart.org/en/articles/1426580-price-discount-rules

If you are facing any trouble, please open a support ticket at our website. We can assist you with the set up.

Thanks