<?php
function countPrice($percent,$comission,$extra,$creditSum,$payout){
$paid=0;
$credit=$creditSum+$extra;
while($credit!=0){
$credit=($credit*$percent)+$comission;
if($credit<$payout) $payout=$credit;
$credit=$credit-$payout;
$paid+=$payout;
}
return $paid;
}
$creditSum=39999;
$payout=5000;
$hmCredit=countPrice(1.04,500,0,$creditSum,$payout);
$softCredit=countPrice(1.03,1000,0,$creditSum,$payout);
$strCredit=countPrice(1.02,0,7777,$creditSum,$payout);
echo <<<_TX
HomoCredit=$hmCredit
SoftBank=$softCredit
StrawberryBank=$strCredit
_TX
;
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