How much would you invest / pay if the profit was $930,834.45 for it to be a good return on investment? ?

It depends on how long it would take to see that profit before anyone can give you a real answer. A million is not much at all . It will get you a nice house. Or a nice boat , not even a yacht,  so it had better be producing pretty fast , anything other than a very short time is not good.  Long term and the cost of living will kill you. A  house bought for 400 grand  in 2000. today it is a million plus  ...20 years . So that tells you the rate of inflation. fast and furious. A new Corvette cost you 35 grand 20 years ago , that same one will cost you 100 grand today, it is approx.  the same ratio as the house , inflation has gone up in twenty years. 

So that 930 grand better rise quick for not much of an investment , or you will lose. 

I mean in a real business setting. Not in a perfect world.

If I invested $100 and got a profit of $930,834.45, that would be a good return on my investment.