Line

Calculates the discount based on the line discount only.

Multiline

Calculates the discount based on the multiline discount only.

MAX (Line, Multiline)

Calculates the discount based on the larger of the two discounts.

MIN (Line, Multiline)

Calculates the discount base on the smaller of the two discounts.

Line + Multiline

Adds the two discounts, and then calculates the discount.

Line * Multiline

Calculates the discount based on line discount, and then calculates the discount based on the multiline discount.