diff --git a/assets/theme.js b/assets/theme.js
new file mode 100644
index 0000000..e579e73
--- /dev/null
+++ b/assets/theme.js
@@ -0,0 +1,18 @@
+// .... find this line
+const selectedVariant = productJson.variants.find(variant => variant.id === variantId)
+
+// ... then paste this right below
+const discountPercentage = productJson.discount_percentage || 0;
+var selectedVariant_compare_at_price = selectedVariant.compare_at_price;
+var selectedVariant_price = selectedVariant.price;
+
+if(discountPercentage > 0.1){
+    selectedVariant_price = selectedVariant.price * (1.0 - discountPercentage);
+    selectedVariant_compare_at_price = selectedVariant.price;
+
+    if(selectedVariant.compare_at_price > selectedVariant_compare_at_price){
+        selectedVariant_compare_at_price = selectedVariant.compare_at_price;
+    }
+}
+
+//... replace selectedVariant.price with selectedVariant_price, and replace selectedVariant_compare_price
\ No newline at end of file