ENGCOM-1553: [Backport 2.2] Fix for displaying a negative price for a custom option. #15202

Author: VladimirZaets

app/code/Magento/Catalog/view/base/web/js/price-options.js

@@ -20,8 +20,10 @@ define([
         optionConfig: {},
         optionHandlers: {},
         optionTemplate: '<%= data.label %>' +
-        '<% if (data.finalPrice.value) { %>' +
+        '<% if (data.finalPrice.value > 0) { %>' +
         ' +<%- data.finalPrice.formatted %>' +
+        '<% } else if (data.finalPrice.value < 0) { %>' +
+        ' <%- data.finalPrice.formatted %>' +
         '<% } %>',
         controlContainer: 'dd'
     };