Actual Pricer betting calculator

The Actual Pricer calculator calculates:

• The effective betting exchange price after commission

Calculating the effective betting exchange price after commission
You want to back Federer to beat Roddick at the best possible price, but are not sure whether the current Betfair price (1.36) is really better than the bookmaker's best available price (1.33) once you take commission (5%) into consideration. This screenshot shows that the effective Betfair price after commission is actually 1.34, making it slightly more attractive than the bookmaker's best price.