I am developing a warehouse system and I have a problem that I do not know how to solve it. I have a customer who buys their supplier for Triangle chocolate boxes, each box has 24 display, and each display contains 22 units. My client can sell by boxes, by displays and by units, that depends on how he sells his products and so on, many products such as soft drinks, soaps, etc.
I appeal to you if you can guide me how to develop this functionality in my system because currently it only allows me to sell by units and in my warehouse everything is in units as well. Example, if you want to sell a box of Chocolate Triangle, add 528 units and discount in my store the 528 units sold, but want that in the sale part is not added 528 units if not 1 box if the customer buys by box, if Ask for a display, if you ask for a unit, sell per unit.
Any suggestions as to how to solve this problem?