diff --git a/Krypton b/Krypton
index 0d6038f..2f5557c 160000
--- a/Krypton
+++ b/Krypton
@@ -1 +1 @@
-Subproject commit 0d6038f75e1509dcdee95ef9d05962424fe2005f
+Subproject commit 2f5557ccbac59b263c5af7394a0d236d43f4fddd
diff --git a/config.lua b/config.lua
index 7120243..5ceba92 100644
--- a/config.lua
+++ b/config.lua
@@ -12,6 +12,7 @@
     theme = {
         formatting = {
             headerAlign = "center",
+            footerAlign = "center",
             productNameAlign = "center",
             productTextSize = "auto"
         },
@@ -19,6 +20,8 @@
             bgColor = colors.lightGray,
             headerBgColor = colors.red,
             headerColor = colors.white,
+            footerBgColor = colors.red,
+            footerColor = colors.white,
             productBgColor = colors.blue,
             outOfStockQtyColor = colors.red,
             lowQtyColor = colors.orange,
diff --git a/core/ConfigValidator.lua b/core/ConfigValidator.lua
index e0805c3..f582ff3 100644
--- a/core/ConfigValidator.lua
+++ b/core/ConfigValidator.lua
@@ -14,6 +14,7 @@
     theme = {
         formatting = {
             headerAlign = "enum<'left' | 'center' | 'right'>: alignment",
+            footerAlign = "enum<'left' | 'center' | 'right'>: alignment",
             productNameAlign = "enum<'left' | 'center' | 'right'>: alignment",
             productTextSize = "enum<'small' | 'medium' | 'large' | 'auto'>: text size",
         },
@@ -21,6 +22,8 @@
             bgColor = "color",
             headerBgColor = "color",
             headerColor = "color",
+            footerBgColor = "color",
+            footerColor = "color",
             productBgColor = "color",
             outOfStockQtyColor = "color",
             lowQtyColor = "color",
diff --git a/core/ShopState.lua b/core/ShopState.lua
index e966896..fba53a7 100644
--- a/core/ShopState.lua
+++ b/core/ShopState.lua
@@ -121,6 +121,7 @@
                             peripheral.call(state.config.peripherals.outputChest, "drop", 1, productSource.amount, state.config.settings.dropDirection)
                         end
                     end
+                    purchasedProduct.quantity = purchasedProduct.quantity - available
                     if refundAmount > 0 then
                         refund(transactionCurrency, transaction.from, meta, refundAmount, "Here is the funds remaining after your purchase!")
                     end
diff --git a/radon.lua b/radon.lua
index 2c6929a..11e91d2 100644
--- a/radon.lua
+++ b/radon.lua
@@ -104,6 +104,11 @@
         header
     }
 
+    if props.shopState.selectedCurrency then
+        local footer = SmolText { display=display, text="/pay <product>@" .. props.shopState.selectedCurrency.name .. " <amt>", x=1, y=display.bgCanvas.height-smolFont.height-4, align=theme.formatting.footerAlign, bg=theme.colors.footerBgColor, color = theme.colors.footerColor, width=display.bgCanvas.width }
+        table.insert(flatCanvas, footer)
+    end
+
     local maxAddrWidth = 0
     local maxQtyWidth = 0
     local maxPriceWidth = 0
@@ -112,7 +117,7 @@
     local selectedCategory = props.shopState.selectedCategory
     local catName = categories[selectedCategory].name
     local shopProducts = getDisplayedProducts(categories[selectedCategory].products, config.settings)
-    local productsHeight = display.bgCanvas.height - 17
+    local productsHeight = display.bgCanvas.height - 17 - smolFont.height - 4
     local heightPerProduct = math.floor(productsHeight / #shopProducts)
     local productTextSize
     if theme.formatting.productTextSize == "auto" then