Storing Data and Using that Data for Calculations

Overview

Create a table that can store number data. These numbers can then be used to calculate other values.

Ingredients

Apps

Scaffolding

Macros

Table Data

Guide

Create a table

  • insert a Table Data macro

    • name it "purchaseTable"

  • edit the parameters

    • set Initial Rows is 1

Inside the Table Data macro

  • create a 4x2 table as below

    • add to each column in the header row Item; Unit Price; Quantity; Total Price

Item

Unit Price

Quantity

Total Price

Item

Unit Price

Quantity

Total Price











For this example, add the following names for each macro

In the Evaluate Data macro

  • type the following code

${unitPrice} * ${quantity}

The Evaluate Data macro should now look as below.

Adding hidden stored data

Underneath the Table Data macro you created above

The Hidden Data macro is used when you want to enter data that you would rather not show to the reader of the page.

In the Hidden Data macro

  • add two Number Data macros

    • name them "discount" and "tax"

    • set Allow Decimal Values as “true” for both macros

Adding calculations

It's now time to make Scaffolding do some math and calculate the following

  • Net Total (excluding tax and discount)

  • Discount Amount

  • Tax Amount

  • Grand Total (including tax and discount) 

Add four Evaluate Data macros for each of the values above and give them relevant names, as below.


For each Evaluate Data macro

  • enter the following in the Display Format properties

    $ #,##0.00

Type the following codes into the respective Evaluate Data macros

  • Net Total

    sumtable("purchaseTable","totalPrice")
  • Discount Amount

  • Tax Amount

  • Grand Total


The Evaluate Data macros should look similar to the following.



  • Save the page

  • choose Edit Contents

    • input the value "10" for the Discount percentage field

    • input the value "0.5" for the Tax percentage field

Result