Everytime you click the coke you get one can, with cans you can buy upgrades that increase production of cans. Everytime you buy new upgrade the price of that upgrade will increase with 10%. Coke cloner will double production of your other upgrades and it own price will be 4 times higher. Everytime you get 25 same upgrades it production will double. for example Coke factory produces 10 cans per second so if you have 25 they produce 20 cans per second each and if you have 50 of them each of them produce 40 cans per second and so on. Prestige button in menu resets all upgrades and their prices it also resets all production but your cokes will give you 1 7up per million cokes and 7ups will increase your production with 0.02% each, so if you have 478 million cokes you'll get 478 7ups so your production would have increased 95,6%. You can use prestige again still when you will be able to keep old 7ups and you get more of them.