diff --git a/modules/core/src/common/helpers/index.ts b/modules/core/src/common/helpers/index.ts
index 5450b54c..c5f50933 100644
--- a/modules/core/src/common/helpers/index.ts
+++ b/modules/core/src/common/helpers/index.ts
@@ -2,5 +2,6 @@ export * from "./date-helper";
 export * from "./dto-compare-helper";
 export * from "./money-dto-helper";
 export * from "./money-helper";
-export * from "./percentage-dto-helpers";
-export * from "./quantity-dto-helpers";
+export * from "./number-helper";
+export * from "./percentage-dto-helper";
+export * from "./quantity-dto-helper";
diff --git a/modules/core/src/common/helpers/number-helper.ts b/modules/core/src/common/helpers/number-helper.ts
new file mode 100644
index 00000000..71ef4834
--- /dev/null
+++ b/modules/core/src/common/helpers/number-helper.ts
@@ -0,0 +1,3 @@
+export const toSafeNumber = (value: number | null | undefined): number => {
+  return value ?? 0;
+};
diff --git a/modules/core/src/common/helpers/percentage-dto-helpers.ts b/modules/core/src/common/helpers/percentage-dto-helper.ts
similarity index 100%
rename from modules/core/src/common/helpers/percentage-dto-helpers.ts
rename to modules/core/src/common/helpers/percentage-dto-helper.ts
diff --git a/modules/core/src/common/helpers/quantity-dto-helpers.ts b/modules/core/src/common/helpers/quantity-dto-helper.ts
similarity index 100%
rename from modules/core/src/common/helpers/quantity-dto-helpers.ts
rename to modules/core/src/common/helpers/quantity-dto-helper.ts