diff --git a/library/src/calculate_price.cpp b/library/src/calculate_price.cpp
index da93550..a5254d0 100644
--- a/library/src/calculate_price.cpp
+++ b/library/src/calculate_price.cpp
@@ -76,6 +76,32 @@ int CALCULATE_LIBRARY_API get_minimal_parkingprice(Configuration *cfg, PERMIT_TY
     return minPrice;
 }
 
+int CALCULATE_LIBRARY_API compute_product_price(Configuration const *cfg, PERMIT_TYPE permitType) {
+
+    switch(permitType) {
+    case PERMIT_TYPE::SHORT_TERM_PARKING: { // e.g. szeged (customer_281)
+    } break;
+    case PERMIT_TYPE::DAY_TICKET_CHILD:
+        // [[fallthrough]];
+    case PERMIT_TYPE::DAY_TICKET_TEEN:
+        // [[fallthrough]];
+    case PERMIT_TYPE::DAY_TICKET_ADULT: {
+        std::optional<QVector<ATBTariffProduct>> products = cfg->getTariffProductForProductId(permitType);
+        if (products) {
+            QVector<ATBTariffProduct> product = products.value();
+            if (product.size() > 0) {
+                ATBTariffProduct const &p = product[0];
+                return p.m_tariff_product_price;
+            }
+        }
+    } break;
+    default:
+      break;
+    }
+
+    return 0;
+}
+
 int CALCULATE_LIBRARY_API get_maximal_parkingprice(Configuration *cfg, PERMIT_TYPE permitType) {
     int maxPrice = -1;
     static const PaymentMethod paymentMethodId = Utilities::getPaymentMethodId(cfg);