oscommerce derivative minimum quantity discount

oscommerce derivative minimum quantity discount

with customer group discount
business base price 0 %, -10% -20% -30% -40%
private +20%
site test http://stefanazzi.vercelli.org/2023

the discount for businesses that are already up and running
it is activated for the purchase of minimum product quantities (example quantity 20 product discount -10%)
products not in minimum quantities therefore have no discount

Currently everything works by displaying an additional commission for unpaired products (not in minimum quantities) only at the end of the purchase.
but you want more clarity during the purchase phase on the discount not applied

The owner of the site what job asks:

list and product sheet (base price 0% for all businesses) the percentage discount icon remains on the product image
change the indications in the cart and final order
0% price + % discount applied + discounted price (-10%,-20&,-30%,-40%) + any additional commission for each product
Correct the business customer 0% must not have supplements exactly like the private one