Float variable A = float variable A * float variable B ??

Hi,
so I have population and population growth in my game, the population should be multiplied by the population growth, and idk how to do this.
I thought it should be smt like this:
population = (population * population_growth); but this doesn't work

Can somebody help me with this issue?

Thank you in advance!

 

the math you show would make the population smaller or larger (depending if the population_growth is bigger or smaller than 1).

If "it doesn't work", maybe you don't run the code. Or you don't visualize the population variable... if you need more advise, show more code and describe better what you mean with "doesn't work".

 

If you are adding on to the existing population, you need to add that on...

population += (population * population_growth);

 

I mean, it does work. That's exactly how you do that. There must be something else in context that would be making it not work. (Also, please define what you mean by "doesn't work" - the number doesn't change? Compiler error? Runtime error?)

 

Imma F***ing retarded now, I firstly forgot to add the + to the population += (population * population_growth); and secondly I did put it into the wrong section of the code, in start and not into the timer I added.
Still thanks for the help