I am doing a challenge at This moment that i update daily here in the forum. In my opinion if you have the right balance to start with iT must be easy to achieve to make 15-30$ daily by trading. I am doing the challenge only with 100$ to proove people that in a longer timeframe you can easily make a couple 1000s with only a very small start amount.
But the strategy i use can also be used for larger amounts.
It's not about your balance. Even though you have huge balance, you still can't be sure if you can earn $30 daily on trading. Why people care too much how much they should earn in each day? How about just invest for long term and aiming for bigger profit?