The math to upgrade the troops are not working as expected.
Platform, device version and operating system
Windows 7 Home Premium x64 SP1, Intel Core i5 2500k, 8 GB
Screenshot or image
What you were expecting to happen, and what actually happened
I was going to upgrade my troop and I found the upgrade prices are not making sense. If I have a troop on level 1 and I want to upgrade it to level 9, the cost is about 680. But if I have a troop level 4 and I want to upgrade it, the cost is about 690. The screenshots are examples but any troop I want to upgrade keeps the same wrong math. A level 1 troop upgrades to level 9 costing 690 but the same troop at level 4 costs the same 690 instead of 690 minus level 4 cost. It is not the result expected. The result expected is 690 - level 4 cost. It is a crazy math. I think it is a bug because if it is not I don’t want to play this game, certainly.
How often does this happen? When did it begin happening?
It happens always you try to upgrade a troop
Steps to make it happen again
Go to troop, click on a troop and try to upgrade the troop’s level