Creep help for td

Hi

I need some help about creeps hp in a TD

I can't think, need something a bit hard, but not too hard.

Please help me with this|||It's a Solo TD, gonna have 5 races and 30-40 levels, but it's my first map, and i need the creep hp from level 1 and maybe some good advices about how i should do the rest for example:

level 1: 50 hp, each level after, +5% hp.

Or something like that, if you got an idea, please post

|||The hps of the spawns are entirely dependent on the types of damage and amount of damage you can do with the towers. Without context, the values are meaningless.