Why are pricing discount modifiers' percentages different on invoice distributions?

Greetings,

We are implementing 11.5.10.2 Advanced Pricing and after creating a sales order and running AutoInvoice, the invoice has different distributions' percentages then the discount percentages in Advanced Pricing.  The invoice discount amounts are correct.

Example:

Revenue % should be 100% invoice is showing 118.8136%

First Discount should be 14% Invoice is showing 16.6306%

Second Discount should be 2.13% invoice is showing 2.1830%

Can anyone please advise as to why this is happening?

Thanks,

Kelly