This adjustment is to encourage small and mediumDevelopmentPeople upload apps to the Microsoft Store for hosting purposes, if developers pass their ownwebsiteTo sell the app, then just need toMicrosoftPay 5% of revenue. Developers often spend more on other hosting services or payment processing services. And if the buyer buys through the store or through other promotions, the resulting revenue needs to pay 15% to Microsoft.
If Microsoft can convince desktop users to get applications from the mall, then 700 million desktop users are a very worthwhile market for developers. About the Microsoft StoreThe full fee terms can be found here.