public function setAddition($value)
    {
        $this->data->amount->subtotals->addition = $this->convertAmount($value);

        return $this;
    }
public function setAddition($value)
    {
        $this->data->amount->subtotals->addition = $this->convertAmount($value);

        return $this;
    }
public function setAddition ( $ value ) { $ this -> data -> amount -> subtotals -> addition = $ this -> convertAmount ( $ value ) ; return $ this ; }
Set a value addition

@param  float  $value
@return $this
Set a value addition