src/models/ShopProduct.php
public function getBaseProductPriceValue()
    {
        if ($this->_baseProductPriceValue !== null) {
            return $this->_baseProductPriceValue;
        } else {
            $this->_baseProductPriceValue = $this->baseProductPrice ? $this->baseProductPrice->price : null;
        }

        return $this->_baseProductPriceValue;
    }
public function getBaseProductPriceValue()
    {
        if ($this->_baseProductPriceValue !== null) {
            return $this->_baseProductPriceValue;
        } else {
            $this->_baseProductPriceValue = $this->baseProductPrice ? $this->baseProductPrice->price : null;
        }

        return $this->_baseProductPriceValue;
    }
Значение базовой цены

@return string