If you ask, most people will tell you that "Money CANNOT buy Happiness", which is true to some extend. However, there is still close relationship between money and happiness.
Accordingly to the entertaining video that I am going to share next (from AsapSCIENCE youtube channel), the key is on how we spend the money instead of how much we earned/saved. In short, if you voluntarily spend the money on others, it will create more chance for you to feel happy.
Also, there is an interesting findings in the US that income beyond $75,000 (annual) does not impact happiness! What it means is that once your annual income hit this magical number, any additional amount will not be solely impact your happiness.
Check out the video below and feel free to leave your view on whether you are agreeable with the findings.