---
schema_version: "1"
id: 2f54d21d9b125394b45c9df420a0280aeb07ce0fe6bf5218e0e54e4c514da175
title: "- (Subtract)"
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/customize_functions_subtract.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.customize_functions_subtract.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: f1b5becd39fc5725b1af602ac0465116debcc983056e164fc4259485dd4b3c49
description: Calculates the difference of two values.
products:
  - Salesforce Platform
  - Security
release: "264"
---
# \- (Subtract)

Calculates the difference of two values.

## Use

`value1 - value2` and replace each value with merge fields, expressions, or other numeric values.

![Calculate Difference Example](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-platform-extend_click-264-0-0-production-enus/5f7d9219-b7b1-4552-8891-f1aba9b289fc/images/icon_example.png)

Calculate Difference Example

This formula calculates the difference of the product Amount less the Discount Amount. Discount Amount is a custom currency field.

`Amount - Discount_Amount__c`

![Report Example](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-platform-extend_click-264-0-0-production-enus/5f7d9219-b7b1-4552-8891-f1aba9b289fc/images/icon_example.png)

Report Example

`AMOUNT:SUM - Product.Discount_Amount__c:SUM` calculates the difference of all Amount fields and all Discounted Amount custom fields on the products in your report. This formula is a currency data type that returns a currency sign and decimal places.