diff --git a/app/Transformers/ProductTransformer.php b/app/Transformers/ProductTransformer.php
index f9aa7b2512c6..11a35c606b26 100644
--- a/app/Transformers/ProductTransformer.php
+++ b/app/Transformers/ProductTransformer.php
@@ -62,13 +62,13 @@ class ProductTransformer extends EntityTransformer
             'id' => $this->encodePrimaryKey($product->id),
             'product_key' => $product->product_key ?: '',
             'notes' => $product->notes ?: '',
-            'cost' => (float) $product->cost ?: '',
-            'price' => (float) $product->price ?: '',
+            'cost' => (float) $product->cost ?: 0,
+            'price' => (float) $product->price ?: 0,
             'quantity' => (float) ($product->quantity ?: 0.0),
             'tax_name1' => $product->tax_name1 ?: '',
-            'tax_rate1' => (float) $product->tax_rate1,
+            'tax_rate1' => (float) $product->tax_rate1 ?: 0,
             'tax_name2' => $product->tax_name2 ?: '',
-            'tax_rate2' => (float) $product->tax_rate2,
+            'tax_rate2' => (float) $product->tax_rate2 ?: 0,
             'updated_at' => $product->updated_at,
             'archived_at' => $product->deleted_at,
             'custom_value1' => $product->custom_value1 ?: '',