It's a Number Field with Decimal Plugin In, which allow only Numeric Values and one DOT and Specified decimal value (2 or 4) in Number Field.
Demo Application: https://apex.oracle.com/pls/apex/f?p=113036:9999::BRANCH_TO_PAGE_ACCEPT::9999:P9999_APP_PAGE_REDIRECT:35
DB versions: 12.1.0.1,12.2.0.1,18.4.0.0,19.0.0.0.0,19.2.0.0.19,21.0.0.0.0,21.1.0.0.0,21.1.0.0.1
APEX versions 20.1.0.00.13,20.2.0.00.20,21.1.0
Export plugin file "item_type_plugin_orclking_number_field.sql" from Source directory and import it into your application.
Step 1: Create a new blank page.
Step 2: Export plugin file "item_type_plugin_orclking_number_field.sql" from Source directory and import it into your application.
Navigation: Shared Components ==> Plug-ins ==> Import
Plugin will be listed under plug-ins bucket after successful installation.
Step 3: Create a region to the page. Region type should be Static Content.
Step 4: Create a item to the region. Change item type to "Number Field with Decimal [Plug-In]".
Step 5: In the Settings section you can choose some options. The image below shows all the available options.
Element Text Position - Position of the field value (Left/Right)
Min. Value - Specifies the minimum value allowed
Max. Value - Specifies the maximum value allowed
Digits - Specifies the decimal value allowed
Then you output would display like this,
That's it.
Happy APEXing!!!...