Lately, i have been doing my regular attacks and saving up for the first upgrade i need to do on my head slot, which is ceberal parasite. so i got enough credits to upgrade, once i do, the only thing it gives me is (0), now i thought that was pretty wierd becuase i thought the upgrade store was fully functional and i guess it isnt you can see on my profile on my head slot and see for yourself to see this proof.

i figure the people who are working very hard for thier credits, should get back what they earned or get a bigger boost.

Remember that you can only improve on that stats the item has.
If the increase isn't enough, you don't get benefit.

i really think that the upgrades should be more... 2% is kinda a joke... it's not like the items have 10,000 where 2% would make a significant (200) upgrade... the best you have is like 750 which is only a 15 upgrade which seems almost completely pointless..

You can get 10% when you max the upgrades out, which is 75 more.

eh... up the cost of them and make them 10%/level  

i think that's a bad idee. altough *1,1 isn't allot i would change the system a bit

maybe do it
upgrade 1: *1,0125
upgrade 2: *1,0250
upgrade 3: *1,0375
upgrade 4: *1,0500
upgrade 5: *1,0625

this does *1,20 it's more, but if you make the prices

cost 1: *1,50 =500,000 Cr  *1,5 = 750,000 Cr
cost 2: *1,75 = 1,000,000 Cr  *1,75 = 1,750,000 Cr
cost 3: *2,25 = 5,000,000 Cr *2,25 = 11,250,000 Cr
cost 4: *2,50 = 15,000,000 Cr *2,5 = 37,500,000 Cr
cost 5: *2,75 = 40,000,000 Cr* 2,75 = 110,000,000 Cr

it will be compensated + the fact that the first 2 upgrades are less (in total 1,0378125)  will also balance things a bit