Cross Order Volume Scenario for a Calendar Year

Hello Everyone,

Here is my scenario:

If a customer has Orders totaling $350k within the calendar year, all future orders for that customer should get a X% discount.

The QP: Cross Order Volume Period profile, is based on the number of days, so it is a rolling period.

My requirement is to consider the Calendar Year... So looking for ideas to resolve this.

Thanks in advance for help and guidance.

Srikant