Dividing the average bonus return by the purchase price gives a rough efficiency figure that makes two games comparable. Worked calculations using published data are shown on https://thebonusbuyslots.com. A ratio near one means the purchase is priced close to its expected value, which is common. Anything meaningfully below that is a title I would skip.
English
Arabic
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek
