For me personally I always prefer to have it at 50% savings, and 50% investments as that is a more than enough percentage to see my wealth grow.
If your investment doesn't work out as planned, then you at least have money to fall back on. That's very important.
That is exactly a great way of doing both things equally because if both of them works, savings would probably do but sometimes investments get failed so someone would have a back up plan as savings which can be used further as investment or for something else.
Actually investment come from savings, so when your investment fail, you have to restart and save again. You cannot invest money from the one you use for your daily budgets. That is the fact. YOu can only invest from the money out of your daily budget and that is the one from your savings or suppose to be savings.