# Numerical Calculations

Want to calculate the numerical value for a field based on merge tokens? You can do so by entering your mathematical equation in the format below.

 Operation Syntax with two variables Syntax with a variable & constant Addition {{add x y}} {{add x 10}} Subtraction {{subtract x y}} {{subtract x 10}} Multiply {{multiply x y}} {{multiply x 10}} Divide {{divide x y}} {{divide x 10}} Modulo {{modulo x y}} {{modulo x 10}}

# Numerical Calculation in Loops & Tables

You can also use Numerical Calculation in Loops & Tables.

`Example{{#each line_items}}​Name: {{Name}}Qty: {{Qty}}Price: {{Price}}Total: {{multiply Qty Price}}​{{/each}}​`

## Incrementing @index in Loops & Tables

If you want to display the index of an element while iterating the loop, you can use {{@index}}. It usually starts from 0, so everytime you will have to increment it with 1. You can use add operator with @index.

`Example{{#each line_items}}​Sno: {{add @index 1}}Name: {{Name}}Qty: {{Qty}}Price: {{Price}}Total: {{multiply Qty Price}}​{{/each}}​`