在scrum中记录故事点时计算出冲刺能力

Let's say story A is worth 10 story points. Development starts in sprint 100, but is not completed by they end of the sprint. I am then assuming that you do not claim any points. A story is done or not done. And let's say your average velocity is 25 points and your team stays the same for the next iteration. So when working out your capacity for the next sprint What do you do with the story points when carrying them over. Do you:Let's say story A is worth 10 story points. Dev