public function init()
{
$value = $this->getValue();
if ($this->_riseValue === null) {
$addonModel = new Addon();
$addonRow = $addonModel->getBrandAddon($this->addonTypeId, $this->customerTypeId, $this->brandId);
$this->_riseValue = $addonRow->interest_value / 100;
}
$value += $this->_riseValue;
$this->setValue($value);
}