Making a small calculation here, please someone tell me if I'm correct:

Let's say I bet on the last char being a number. That's 10 out of 16 possible characters. Probability = 62.5%, or in decimal odds it would be 1.6

If my bet is 1 ETH and I win, I will get back 0.9 ETH * 1.6, therefore a total of 1.44 ETH, making a profit of 0.44 ETH?