Custom Size + custom field - qty x [ (width x length) x (price+extras) ]

[Dezaine studio]

Can you help to set it like this previous user explained?
My site selld wallpaper prints in various kinds if materials, with various prices by Square Meter.

Example:
a – width
b – length
c – product price
d – extra option price - custom field cart attribute

It works this way now:
[ (a*b*c) ] + d

but I want it to work this way:
[ (a*b)*(c+d) ]

[ralphm71]

Can you help to set it like this previous user explained?
My site selld wallpaper prints in various kinds if materials, with various prices by Square Meter.

Example:
a – width
b – length
c – product price
d – extra option price - custom field cart attribute

It works this way now:
[ (a*b*c) ] + d

but I want it to work this way:
[ (a*b)*(c+d) ]

Hi did you get a fix with this?

[Dezaine studio]

Not quite, can you give a hint about waht to change on the plugin code?
regards
pedro

[zayac_karina]

Hi! I 've the same problem.
I need this formula for calculation
(a*b*c)
c-sales price,
what i get now is (a*b*d)+c, which is totally wrong in my case.
d-plug-in price.
Joomla 2.5 VM 2.0.20
Thanks!

[rinopiponte]

You can always try our extension.
Price is calculated using users input for width and length, besides, you can set maximum and minimum width and set a minimum pricing rate.
Here is the link
http://design-it.es/diseno-web-extensiones/your-size-custom-size-virtuemart-detail
and here is a demo
http://design-it.es/lienzo-detail