Providers of binary options and forex demo accounts
Also, knowing the risk at stake doesnt require complicated calculators and a basic understanding of math will suffice. Do we need a calculator to tell us we are risking 50 bucks (assuming the broker doesnt offer a refund percentage). If you want to know what percentage 50 bucks represent relative to your entire account, all you have to do multiply 50 by 100 and divide the result to your account balance.
Knowing your risk extremely easy and fast is one of the main advantages of Binary Options so we dont really need complicated calculators.