Hi there.
We have a customer rebate in place with various levels of refund based on the quantity purchased during the year. I have used a sumproduct formula to calculate this before however someone has arranged a new deal which has confused me a bit.
The customer used to have the following set up -
0-999 - £1.00 per unit rebate.
1000-1999 - £2.00 per unit rebate.
2000-2999 - £3.00 per unit rebate.
So if they bought 2501 units they would get a rebate of (1000*1)+(1000*2)+(501*3). However the customer has trigger points so rather than the above it is now -
0-999 - £1.00 per unit rebate.
1000-1999 - £2.00 per unit rebate.
2000-2999 - £4.00 per unit rebate if 2500 bought.
So now it would look like this - (1000*1)+(1000*2)+(501*4). However if they only bought 2499 units it would be (1000*1)+(1000*2)+(499*2).
Any ideas on how to programme this please?
Thanks.
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