diff -r f92db2eabd0d -r a0f72d7ace1f src/database/db_product.cpp
--- a/src/database/db_product.cpp	Wed Jun 08 17:14:37 2022 +0200
+++ b/src/database/db_product.cpp	Wed Jun 08 20:20:57 2022 +0200
@@ -829,7 +829,7 @@
     query.bindValue(":prop4_volume", round(prod->prop_volume[3] * 1000) / 1000);
     query.bindValue(":divide_type", prod->divide_type);
     query.bindValue(":divide_size", round(prod->divide_size * 10) / 10);
-    query.bindValue(":divide_factor", round(prod->divide_factor * 100) / 100);
+    query.bindValue(":divide_factor", round(prod->divide_factor * 10000) / 10000);
     query.bindValue(":divide_parts", prod->divide_parts);
     query.bindValue(":divide_part", prod->divide_part);
 
@@ -877,7 +877,7 @@
                 QJsonObject obj;
 		obj.insert("h_name", prod->hops.at(i).h_name);
                 obj.insert("h_origin", prod->hops.at(i).h_origin);
-		obj.insert("h_amount", round(prod->hops.at(i).h_amount * 10000) / 10000);
+		obj.insert("h_amount", round(prod->hops.at(i).h_amount * 100000) / 100000);
 		obj.insert("h_cost", round(prod->hops.at(i).h_cost * 100) / 100);
 		obj.insert("h_type", prod->hops.at(i).h_type);
 		obj.insert("h_form", prod->hops.at(i).h_form);
@@ -906,7 +906,7 @@
         for (int i = 0; i < prod->miscs.size(); i++) {
                 QJsonObject obj;
 		obj.insert("m_name", prod->miscs.at(i).m_name);
-		obj.insert("m_amount", round(prod->miscs.at(i).m_amount * 10000) / 10000);
+		obj.insert("m_amount", round(prod->miscs.at(i).m_amount * 100000) / 100000);
 		obj.insert("m_type", prod->miscs.at(i).m_type);
 		obj.insert("m_use_use", prod->miscs.at(i).m_use_use);
 		obj.insert("m_time", round(prod->miscs.at(i).m_time));
@@ -929,7 +929,7 @@
 		obj.insert("y_name", prod->yeasts.at(i).y_name);
 		obj.insert("y_laboratory", prod->yeasts.at(i).y_laboratory);
 		obj.insert("y_product_id", prod->yeasts.at(i).y_product_id);
-		obj.insert("y_amount", round(prod->yeasts.at(i).y_amount * 10000) / 10000);
+		obj.insert("y_amount", round(prod->yeasts.at(i).y_amount * 100000) / 100000);
 		obj.insert("y_type", prod->yeasts.at(i).y_type);
 		obj.insert("y_form", prod->yeasts.at(i).y_form);
 		obj.insert("y_min_temperature", round(prod->yeasts.at(i).y_min_temperature * 10) / 10);