Merge pull request #728 from w3f/base-fee-calulation-update

Base fee calculation update

docs/id-extrinsics.md

@@ -43,7 +43,7 @@ $$
 $$
 
 **where**  
-- ${A}_{{i}}$: the 32-byte address of the sender ([Definition -def-num-ref-](id-extrinsics#defn-extrinsic-address)).
+- ${A}_{{i}}$ is the multi-address of the sender defined in [Definition -def-num-ref-](id-extrinsics#defn-extrinsic-address).
 
 - ${Sig}$: the signature of the sender ([Definition -def-num-ref-](id-extrinsics#defn-extrinsic-signature)).
 

docs/id-weights.md

@@ -716,15 +716,15 @@ $$
 
 The Polkadot Runtime defines the following values:
 
-- Base fee: 100 uDOTs
+- Base fee: 1 mDOTs $(10^{-3}DOT)$. Base Fee is defined as the fee for a No-op extrinsic (for e.g., an empty System::Remark call, currently with a weight of 126 micro Seconds).   
 
 - Length fee: 0.1 uDOTs
 
 - Weight to fee conversion:
 
-  ${weight}$ fee = weight \times (100${u}{D}{O}{T}{s}\div{\left({10}\times{10}'{000}\right)}{)}$
+  ${weight}$ fee = $weight/1.26 * (10^{-8})$ where $weight$ is in nS.
 
-  A weight of 10’000 (the smallest non-zero weight) is mapped to ${\frac{{{1}}}{{{10}}}}$ of 100 uDOT. This fee will never exceed the max size of an unsigned 128 bit integer.
+  A weight of 126’000 nS is mapped to 1 mDOT. This fee will never exceed the max size of an unsigned 128 bit integer.
 
 ### -sec-num- Fee Multiplier {#id-fee-multiplier}