From Samsung:

Dear Seller
Thank you for using Samsung Apps Seller Office; we deeply appreciate your support for our service.
To stimulate interest and promote development in the Samsung Apps ecosystem, we will introduce a new profit distribution rate to better benefit our Sellers. According to the current terms and conditions, the profit distribution rate (including In-App Purchase profits) from the sales of applications is 70% for Sellers and 30% for Samsung. Samsung will temporarily adjust this rate to 80% for Sellers and 20% for Samsung from November 1, 2013 to April 30, 2014.
Sales of paid applications are not subject to this profit distribution rate, and this rate applies only to the sales profits of In-App items of applications using In-App Purchase 2.0.
The new profit distribution rate will be applied beginning November 1st for all registered applications using In-App Purchase 2.0. If your application is not yet using In-App Purchase 2.0, please update and register your application. (If the application is distributed after November 1st, it takes 3 to 4 working days for the new profit distribution rate to be applied)
You can find information about In-App Purchase 2.0 at the following URL.
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