Nopcommerce 3.90 I have an issue where the tiered price discount where our old system used percentages. here is an example I am not able to get to work in Nopcommerce 3.90

Our quantity discounts are based on a % off of the regular price – i.e the 28” Cone orange is $13.25 for 1-9 and the reflective version is $20.95 – which is a $7.70 difference.

However, when you buy 10 of the 28” orange cones the price goes down to $11.93 (10% off)  the reflective collar version drops from $20.95 to $18.86 the same 10% drop, but NOT the same as adding $7.70 to the 10+ orange price of $11.93.

In essence, you are not giving the same 10% off the collar add on.  The same would apply to the 20% off price at 50+ and the 30% off price at 300+.

Does anyone have a way to fix this?