diff --git a/core/src/main/java/haveno/core/trade/HavenoUtils.java b/core/src/main/java/haveno/core/trade/HavenoUtils.java
index 11796b92fb..681046aaee 100644
--- a/core/src/main/java/haveno/core/trade/HavenoUtils.java
+++ b/core/src/main/java/haveno/core/trade/HavenoUtils.java
@@ -38,6 +38,7 @@ import haveno.core.util.ParsingUtils;
 import haveno.network.p2p.NodeAddress;
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.math.RoundingMode;
 import java.net.URI;
 import java.security.PrivateKey;
 import java.text.DecimalFormat;
@@ -122,7 +123,7 @@ public class HavenoUtils {
     }
 
     public static BigInteger xmrToAtomicUnits(double xmr) {
-        return BigDecimal.valueOf(xmr).multiply(new BigDecimal(XMR_AU_MULTIPLIER)).setScale(8).toBigInteger();
+        return BigDecimal.valueOf(xmr).setScale(8, RoundingMode.DOWN).multiply(new BigDecimal(XMR_AU_MULTIPLIER)).toBigInteger();
     }
 
     public static long xmrToCentineros(double xmr) {
diff --git a/core/src/main/java/haveno/core/util/coin/CoinUtil.java b/core/src/main/java/haveno/core/util/coin/CoinUtil.java
index 7e5a2a87e9..ff068f0663 100644
--- a/core/src/main/java/haveno/core/util/coin/CoinUtil.java
+++ b/core/src/main/java/haveno/core/util/coin/CoinUtil.java
@@ -29,6 +29,7 @@ import org.bitcoinj.core.Coin;
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.math.RoundingMode;
 import java.text.DecimalFormat;
 
 import static com.google.common.base.Preconditions.checkArgument;
@@ -76,7 +77,7 @@ public class CoinUtil {
      */
     public static BigInteger getPercentOfAmount(double percent, BigInteger amount) {
         if (amount == null) amount = BigInteger.valueOf(0);
-        return BigDecimal.valueOf(percent).multiply(new BigDecimal(amount)).toBigInteger();
+        return BigDecimal.valueOf(percent).multiply(new BigDecimal(amount)).setScale(8, RoundingMode.DOWN).toBigInteger();
     }
 
     public static BigInteger getRoundedAmount(BigInteger amount, Price price, long maxTradeLimit, String currencyCode, String paymentMethodId) {