diff --git a/.env.example b/.env.example
index 633c888..096d574 100644
--- a/.env.example
+++ b/.env.example
@@ -3,7 +3,7 @@ RPC_URL=https://kovan.infura.io/v3/a3f4d001c1fc4a359ea70dd27fd9cb51
 PRIVATE_KEY=
 ETH_MIXER_ADDRESS=0x1Cea940cA15a303A0E01B7F8589F39fF34308DB2
 DAI_MIXER_ADDRESS=0x7ed3fC8042e18db889A0466F49c438bB1410b3c7
-# 25 means 2.5%
-RELAYER_FEE=25
+# 2.5 means 2.5%
+RELAYER_FEE=2.5
 
 APP_PORT=8000
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
index f830478..6a41d79 100644
--- a/src/index.js
+++ b/src/index.js
@@ -44,4 +44,4 @@ console.log(`mixers: ${JSON.stringify(mixers)}`)
 console.log(`gasPrices: ${JSON.stringify(fetcher.gasPrices)}`)
 console.log(`netId: ${netId}`)
 console.log(`ethPrices: ${JSON.stringify(fetcher.ethPrices)}`)
-console.log(`Service fee: ${relayerServiceFee / 10}%`)
\ No newline at end of file
+console.log(`Service fee: ${relayerServiceFee}%`)
\ No newline at end of file
diff --git a/src/utils.js b/src/utils.js
index a54e9ad..f903f37 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -58,7 +58,7 @@ function sleep(ms) {
 
 function isEnoughFee({ gas, gasPrices, currency, amount, refund, ethPrices, fee }) {
   // TODO tokens can have less then 18 decimals
-  const feePercent = toBN(toWei(amount)).mul(toBN(relayerServiceFee)).div(toBN('1000'))
+  const feePercent = toBN(toWei(amount)).mul(toBN(Number(relayerServiceFee) * 10)).div(toBN('1000'))
   const expense = toBN(toWei(gasPrices.fast.toString(), 'gwei')).mul(toBN(gas))
   let desiredFee
   switch (currency) {