Sales performance is pivotal for the GRAND DECO Salaya project as it determines its progress and success. Therefore, establishing sales strategies and objectives is vital for the project's success.

To my knowledge, the initial sales target for the GRAND DECO Salaya project is set at 50%. This target is determined based on various considerations such as the project's scale, market demand, and competitive landscape. While challenging, this target is deemed achievable due to the project's superior quality, prime location, and the existing demand for high-end residences in the market, all of which can effectively drive sales.

However, setting sales targets is only the beginning. Effective measures need to be implemented during the actual sales process to achieve these objectives. These measures may include precise targeting of the customer base, advertising through both online and offline channels, utilizing emerging platforms like social media for promotion, among others.

Moreover, enhancing communication and engagement with potential customers, addressing their queries and requirements promptly, is essential to boost customer satisfaction and trust. Additionally, emphasis should be placed on word-of-mouth marketing to attract more potential customers through positive reviews.

In addition to the mentioned measures, developers can also consider innovative sales strategies. For instance, employing VR technology to create virtual reality showrooms for a more immersive understanding of the project's features, or organizing thematic and promotional events to attract more target customers for visits and consultations. These innovative sales strategies not only increase the project's visibility and appeal but also enhance customer engagement and willingness to purchase.

Lastly, developers need to closely monitor market changes and competitive dynamics, adjusting sales strategies and objectives timely to ensure the project's smooth progress and marketing success.