update Jetton transfer fee

Author: gkaravatski

docs/develop/dapps/asset-processing/usdt.md

@@ -22,7 +22,7 @@ transaction_fee = gas_used * gas_price
 * `gas_used` is the amount of gas was used during transaction execution.
 * `gas_price` price on 1 unit of gas in Gwei, calculated dynamically
 
-On the other hand average fee for sending any amount of a custom Jettons (e.g., jUSDT) in TON Blockchain is about 0.037 TON nowadays. Even if TON price increases 100 times, transactions will [remain ultra-cheap](/develop/smart-contracts/fees#average-transaction-cost).
+On the other hand average fee for sending any amount of a custom Jettons (e.g., jUSDT) in TON Blockchain is about 0.01 TON nowadays. Even if TON price increases 100 times, transactions will [remain ultra-cheap](/develop/smart-contracts/fees#average-transaction-cost).
 
 ## jUSDT vs USDT
 

docs/develop/smart-contracts/fees.md

@@ -89,7 +89,7 @@ Average fee for sending any amount of TON is 0.0055 TON.
 
 ### Fees for sending Jettons?
 
-Average fee for sending any amount of a custom Jettons is 0.037 TON.
+Average fee for sending any amount of a custom Jettons is 0.01 TON.
 
 ### Cost of minting NFTs?