Provides options to add a "Percentage" price set field, which can add an additional amount to a transaction, as a configurable percentage of other selected price set options.
As a price set field, this option will appear as a line item in contribution records and receipts.
Tested with contribution pages and events, with sales tax and with the CiviDiscount extension. (For proper CiviDiscount support, this extension must be installed after CiviDiscount.)
After enabling the extension, you'll find a new option named "Field calculates 'Automatic Additional Percentage'" available for price set fields of the type "CheckBox". Selecting this option reveals additional options:
- Percentage: The actual percentage to be used in calculations, e.g, 3.5.
- Apply percentage to tax amounts: If checked (the default setting), this will cause percentage calculations to be performed on the total including any added sales tax. If un-checked, percentage calculations will be made on the total exclusive of sales tax. (Most sites don't use sales tax, in which case this setting will be inconsequential.)
The usual CiviCRM price field options are still available as well.