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invoiceninja/app/Helpers/Invoice/Taxer.php
David Bomba d29f37ef8b
Improve invoice calculations (#3007)
* Fixes for test

* Invoice Items Inclusive Tax Calculator

* Inclusive taxes

* Invoice Inclusive Tax Tests

* More tests

* clean up

* fixes for inclusive tests
2019-10-22 13:07:00 +11:00

37 lines
735 B
PHP

<?php
/**
* Invoice Ninja (https://invoiceninja.com)
*
* @link https://github.com/invoiceninja/invoiceninja source repository
*
* @copyright Copyright (c) 2019. Invoice Ninja LLC (https://invoiceninja.com)
*
* @license https://opensource.org/licenses/AAL
*/
namespace App\Helpers\Invoice;
/**
* Class for tax calculations
*/
trait Taxer
{
public function taxer($amount, $tax_rate)
{
return round($amount * (($tax_rate ? $tax_rate : 0) / 100), 2);
}
public function calcAmountLineTax($tax_rate, $amount)
{
return $this->formatValue(($amount * $tax_rate/100), 2);
}
public function calcInclusiveLineTax($tax_rate, $amount)
{
return $this->formatValue($amount - ($amount / (1 + ($tax_rate/100))), 2);
}
}