Condition Value with Maximum Order Value

Hi,

I have a pricing requirement wherein we need to calculate condition value as a % to document value provided the total value charged at the document does not exceed specified value. As an example, Fees should be charged as 5% of the value but cannot exceed 3.5$ per order. As a requirement, it looks to be a header condition but I cannot attach a access sequence for the system to calculate it automatically since we dont want any manual intervention but the total value at the document value should be restricted to 3.5$, which means condition type is a line item condition with a maximum cap at the document level.

Can you please help me in solving this requirement?

Regards,

Naveen Aggarwal