public function getCost(Purchase $purchase) { $count = $purchase->getCount(); $percent = 0; foreach ($this->stages as $cnt => $percent) { if ($count <= $cnt) { break; } } return $purchase->getCost() * (100 - $percent) / 100; }
public function getCost(Purchase $purchase) { return $purchase->getCost() * (100 - $this->percent) / 100; }