Hey Sam, yep you can check your current allocation using various tools but no combination yet that I am aware of.
You will not get exactly double as there is a 1% fee charged for both buying and selling RAM, but there is a really good calculator written by @eosnewyork to help you work out profit or loss here.
Thank you, I understand we have a current supply of ram, is it possible for the supply increase and decrease the price? If yes, who will initiate that?
Absolutely, we currently have 64G total which is very low. As with anything, when there is more available, the price goes down, supply and demand.
Dan Larimer suggested that the go-live team launch with a limited amount of RAM so that whales could not swoop in and buy it all. We will get a new allocation very soon I feel, block producers will initiate this increase. As to when they will do this, I can only guess around 75 - 90% of total RAM allocated.
OK thanks