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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
wow, a work of art this is...
This would've been more difficult if the author of the kata took into account the, albeit less likely, case of one or both teams scoring 10 goals or more.
Shouldn't there be some rounding? What if the discount is, say, 17%?