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Numeric values can be calculated and entered into document fields. Lists can be used for demonstration as presented below

• Create a new list with a set of the following number type fields:

  • Amount,
  • Contract expenses,
  • Tax (6%). Calculated automatically,
  • Total amount. Calculated automatically.

  The Contact expenses field won't have "required" option specified. If this field contains values, they will be taken into account in calculations.

  

  Note: Depending on the PHP settings, number field values can be displayed in Scientific notation.

• Create a template sequential business process and configure it to start when a new element is added.
• And and configure first activity Modify document that will calculate a total amount tax as follows:

  Field: Tax (6%). Calculated automatically,

  Value: ={=Document:PROPERTY_s}*0.06,

  where

  {=Document:PROPERTY_s} is the value of Amount field.

  

• And and configure second activity Modify document that will calculate total amount with account of all deductions:

  Field: Total amount. Calculate automatically,

  Value: ={=Document:PROPERTY_s}-{=Document:PROPERTY_contract}-{=Document:PROPERTY_tax},

  where

  {=Document:PROPERTY_s} is the value of the Amount field,
  {=Document:PROPERTY_contract} if the value of the Contact expenses field,
  {=Document:PROPERTY_tax} is the value of the Tax (6%) field. Calculated automatically.