Sorry for my impudence but I repeat the question: Can my SP balance be reduced by Power Down?

  

Help me please to understand what is the inflation (issuance) rate in steem power? As the whitepaper said there is 100% of new tokens issuance per year. But the calculator here says it is more 1000%. So where the truth is?

Even more strange thing that I've found out is that in case of 100% or higher issuance per year Power Down mode would not reduce the amount of your Steem Power. If we say that some user have 1 SP, then after a week he will have 2^(1/52)=1.0134 SP as there are 52 weeks in a year. Considering that only 90% of new created SPs go to the SP's owners our user will have   1+(1-1.0134)*90%=1.0121 SP at minimum (without posting/curating). Let's now calculate the amount of coins which should be extracted from user's account by Power Down each week: 1/104 = 0.0096 (as in two years we have 104 weeks). Now if we take (1-1/104) instead of 1 and repeat the first part of our calcualtions (i.e. calculate our residue after first week Power Down with the interest) we will get (1-1/104)*1.0121 = 1.0023. This shows that even considering weekly Power Down extraction of coins user's SP balance won't be reduced.

So absolute SP balance of every user can only grow with time. Same can not be said about relative weight of each balance in total network sum though.

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