Promotional Campaign

Hello,

Good day to everyone.

I've a question here which hope someone can help me to sort this out for a promotional campaign on my store.

Does anyone know how to setting product offer which suit my criteria as below?

Customer buy 1 product, it will be buying at normal price. If they buy 2nd product, it will be having 50% discount. BUT can we set the rules for the discounts only apply to the lowest product price of those 2 they added to cart?

eg.

Product 1 - $10.00
Product 2 - $100.00
(discount only apply to the lower price product) which is the - Product 1 (-$5.00) | and NOT (-$50.00).

Help are very much appreciate. Thank you in advance & waiting for favorable reply.