If you invest in any project with a fixed number if profit in your mind then you may not have that profits. You should not invest intended to higher returns. Any amount we invest can give us profits if we invest them into a correct project. For long term, i think you should think about monthly benefits rather then calculating daily profits. Long term investments are much profitable and less riskier.

Short term investments are subject to market risk and we can loose our funds over there if we do not concentrate more deeply. If you have the skills then you will surely find good profit at the end of your trading.