<?php
error_reporting(-1);
header("Content-Type: text/plain, charset=utf-8" );

$depositt=39999;
$paymentt=5000;
function calcIpadPrice($deposit, $payment, $percent, $commision,$openSchet){
    $creditItogo=$deposit+$openSchet;
    $vsegoYplacheno=0;
    for ($i=1; $creditItogo>0;$i++){
       if (($creditItogo*$percent+$commision)<$payment){
           $payment=$creditItogo*$percent+$commision;
       }
       $creditItogo=($creditItogo*$percent+$commision)-$payment;
    $vsegoYplacheno=$vsegoYplacheno+$payment;
     
       }
          return $vsegoYplacheno;               
}

$openSchetHomo=0;
$percentHomo=1.04;
$commisionHomo=500;

$HomoCredit=calcIpadPrice($depositt,$paymentt,$percentHomo,$commisionHomo,$openSchetHomo);
echo "Стоимость айпада в Хомокредите {$HomoCredit}\n";

$openSchetSoft=0;
$percentSoft=1.03;
$commisionSoft=1000;

$soft=calcIpadPrice($depositt,$paymentt,$percentSoft,$commisionSoft,$openSchetSoft);
echo "Стоимость айпада в софте в Софтбанке {$soft}\n";

$openSchetStraw=7777;
$percentStraw=1.02;
$commisionStraw=0;

$straw=calcIpadPrice($depositt,$paymentt,$percentStraw,$commisionStraw,$openSchetStraw);
echo "Стоимость айпада в Стрэвберрибанк {$straw}\n";