Quote from: 8OR9 on September 13, 2017, 01:27:29 PM
The intelligent, professional, speculator or gambler will say he won 2% of bankroll or 4 % of bankroll or lost 2% of bankroll or lost 4 % of bankroll
Well said, indeed.
Whatever investment you make, even a game of chance is an investment with a certain risk. You always look at the return (profitability ratio) on investment (ROI) in terms of percent. The most commonly used ROI formula is net profits divided by the total cost of the investment which in a gamblers case is his initial BR (Bank Roll), and where the quotient is converted to a percentage by multiplying it by 100.
It is basically a simple formula that investors or professional gamblers can use to evaluate their risk investments and judge how well a particular investment, or game, has performed compared to others. There are of course more complex formulas where time is included (longevity of exposed risk versus profit), but essentially all end up with a converted quotient in percent in any professional gamblers mind.