diff --git a/specification/metrics/listunitprice.md b/specification/metrics/listunitprice.md
index 1890fac8e..3860dbc91 100644
--- a/specification/metrics/listunitprice.md
+++ b/specification/metrics/listunitprice.md
@@ -1,6 +1,6 @@
 # List Unit Price
 
-The List Unit Price represents a suggested provider-published unit price for a single pricing measurement unit (identified by a [Sku Price Id](#skupriceid)), which incorporates volume/tier-based rates while excluding any negotiated or commitment-based discounts. This price is denominated in the [Billing Currency](#billingcurrency). It is used to calculate List Cost and savings based on rate optimization activities.
+The List Unit Price represents a suggested provider-published unit price for a single pricing measurement unit (identified by a [Sku Price Id](#skupriceid)), which incorporates volume/tier-based rates while excluding any negotiated discounts, commitment-based discounts or the amortization of upfront charges (one-time or recurring). This price is denominated in the [Billing Currency](#billingcurrency). It is used to calculate List Cost and savings based on rate optimization activities.
 
 The ListUnitPrice column MUST be present in the billing data. This column MUST be a numeric value of type Decimal within the range of non-negative decimal values. It MUST NOT contain null if SkuPriceId is not null and it MUST be null if SkuPriceId is null. When ListUnitPrice is not null, multiplying ListUnitPrice by [QuantityInPricingUnit](#quantityinpricingunit) MUST equal [ListCost](#listcost).
 
@@ -14,7 +14,7 @@ List Unit Price
 
 ## Description
 
-A suggested provider-published unit price for a single pricing measurement unit (identified by a [Sku Price Id](#skupriceid)), which incorporates volume/tier-based rates while excluding any negotiated or commitment-based discounts.
+A suggested provider-published unit price for a single pricing measurement unit (identified by a Sku Price Id), which incorporates volume/tier-based rates while excluding any negotiated discounts, commitment-based discounts or the amortization of upfront charges (one-time or recurring).
 
 ## Content Constraints