The amount of money you can get from cash out depends on how close or how far you are to winning the bet.
If you are very close to winning, your cash out amount will be very close to your potential winnings.
On the other hand, if your bet is on the verge of failing, your cash out amount will be a lot lower, possibly less than your stake amount.
While the cash out amount can go lower than your stake, it can never be higher than your potential winnings.
For the most generous cash out offers, have a look at betway.