Hi @sbloomfield1 and welcome to the community. Can I ask is it bubble witch 3 you are seeing this in? Could I ask you to add a screenshot as I don't have anything like that in my game but it might be known as a different name so hopefully seeing it will clear it up
I will see what I can find out for you @Helen132! Welcome to our community I see you have just joined us Let me find out from the CM and I will get back to you
Ok so I have some info from the community moderator. Its a new feature, its still in testing so any feedback would be awesome. Basically its as the picture says, You can exchange your saved boosters for Gold Bars. Different boosters have different exchange rates and tapping on the market will help you to see the exchange rates. This seems new and exciting maybe?