I am currently running a small idea where people can join with a project.

So we have clients that pay us monthly to use their tool, so let's say that month costs 20$/client/month.

Based on that we have our costs too let's say our costs is "100$" or X.

X - Total Received This Month = Amount to pay projects.

So the problem i am having here is how would be the best option to be paying the projects taking into consideration the amount of time and clients used it during that month ?

Or anyother possibles ways to do it that would fit more this idea ?

i belive you guys might have more knowledge of this then i am for sure since i never did such thing so i am here asking for some advice

if you have any extra questions please feel free to ask ...

Thanks in advance.