When it comes to job offers and promotions, you can increase your value simply by understanding what you’re worth and sticking to your guns.
Check out the salaries and perks within your industry and location, and decide what is acceptable to you and what is not. Use your newfound knowledge as a foundation to negotiate, and if the offer isn’t acceptable don’t be afraid to walk away. When you value yourself enough to stand up for what you believe in, others will value you as well.
If you don't advocate for yourself, no one else is going to either.