Quick help please!

[JohnsonY]

I need to selling a item with different color and different price. This is how I setup my price. I want to set 30% off when customer buy like 12 item with a color.

I try to set item price to $5

attributes
color1 $0
color2 +1
color3 +3.5

Minimum Qty Discount Value Calculate Price: Extended Price:
12 30(with %) 3.5 $3.50x 12 = $42.00

It work this way but there a problem. Most my customer compain about the price is not easy view cause they need to do some little math "Quiz" before getting the unit price for color 2 and color3.

Then I try to set

Item price is $0.00

attributes

color1 $5
color2 $6
color3 $8.5


Minimum Qty Discount Value Calculate Price: Extended Price:
12 $0.00 $0.00 $0.00x 12 = $0.00
But since not working.

Here is my question:
1. How to make the price show on product info page with actual price not with + or - math "quiz"

2. How to make % off with the attributes values with Item price set with $0.00