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 <?php
 /**
  *  ocs-webserver
  *
  *  Copyright 2016 by pling GmbH.
  *
  *    This file is part of ocs-webserver.
  *
  *    This program is free software: you can redistribute it and/or modify
  *    it under the terms of the GNU Affero General Public License as
  *    published by the Free Software Foundation, either version 3 of the
  *    License, or (at your option) any later version.
  *
  *    This program is distributed in the hope that it will be useful,
  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU Affero General Public License for more details.
  *
  *    You should have received a copy of the GNU Affero General Public License
  *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
 class Default_View_Helper_CalcDonationTextBoth extends Zend_View_Helper_Abstract
 {
 
     const paypal_fix = 0.3;
     const paypal_var = 0.029;
     const tax = 0.19;
 
     public function calcDonationTextBoth($tier)
     {
         $result = "(";
         //($0.99 + 35 cents paypal + 26 cents taxes = $1.60 monthly)
         $v = ($tier + self::paypal_fix)/( 1- ( ( self::paypal_var/(1+self::paypal_var)) + (self::tax/(1+self::tax)) ));   
         $paypal = self::paypal_fix+$v*self::paypal_var;
         $total = $tier + $paypal;
         $t=$total*self::tax;
         $g = $total+$t;
         $r = '$'.$tier.' + $'.number_format($paypal, 2).' paypal + $'.number_format($t, 2).' tax = $'.number_format($g,2).' monthly or ';
         
         $result .= $r;
         
         $tier = $tier*12;
         $v = ($tier + self::paypal_fix)/( 1- ( ( self::paypal_var/(1+self::paypal_var)) + (self::tax/(1+self::tax)) ));   
         $paypal = self::paypal_fix+$v*self::paypal_var;
         $total = $tier + $paypal;
         $t=$total*self::tax;
         $g = $total+$t;
         $r = '$'.$tier.' + $'.number_format($paypal, 2).' paypal + $'.number_format($t, 2).' tax = $'.number_format($g,2).' yearly)';
 
         $result .= $r;
         
         
         return $result;
     }
 
 }