I want simple feature. We think we have a product price like 10 usd.
 
I want to select my customers differance options with quantity based price with radio button etc.
 
Example
 
Bycle -> 10usd
 
Select quantity :
|| 1 (10 usd)
|| 2 (18 usd)
|| 3 (25 usd)
 
Add Cart
 
how can i do this?
 
I tried options & compenents (subcontents, options etc) but not work for me. Because options dont give me stock lvl and subcontents add product to cart with selected quantity.
 
example i want to buy 1 bycle but then i select "1 (10 usd)" price changed with 20usd :( i click "add to card" system add to card 2 bycle..
 
Please help me for this because %80 of my products working with this system
 
Best regards

I think i know what you mean. Each qty of your product varies in price. So if you pick;
 
Qty 1 will cost $10.
Qty 2 will cost $18
Qty 3 will cost $25
 
I an new to ViArt, but the way you can have it working is remove the Add to Cart option.
 
You can add another option to the product and call it Qty.
 
In the components (down below) add as follows
 
1 price as 10
2 price as 18
3 price as 25
 
This should show on your product listing as follows;
 
Qty 1 +$10
Qty 2 +$18
Qty 3 +$25
 
I think this will work for you.

I think this is correct, but isn't it
q1> +0
q2> +8
q3> +15?

That is so if you start with a base price I guess. My suggestion was based on the fact that you have no idea of a base price, and your price is determined my the choices the customer makes. So your qty cart is actually useless for that product and you have wait till all the question have been answered by the client then figure out the price.
 
Does it make sense?