diff --git a/contracts/CrowdPooling/impl/CPFunding.sol b/contracts/CrowdPooling/impl/CPFunding.sol
index 6ea5569..950e423 100644
--- a/contracts/CrowdPooling/impl/CPFunding.sol
+++ b/contracts/CrowdPooling/impl/CPFunding.sol
@@ -69,12 +69,22 @@ contract CPFunding is CPStorage {
         // if quote = m*base i = 1
         // if quote > m*base reverse
         {
-            uint256 avgPrice = DecimalMath.divCeil(poolQuote, _UNUSED_BASE_);
-            uint256 baseDepth = DecimalMath.mulFloor(avgPrice, poolBase);
             address _poolBaseToken;
             address _poolQuoteToken;
             uint256 _poolI;
-            if (poolQuote.mul(_UNUSED_BASE_) == poolQuote.mul(poolBase)) {
+
+            uint256 avgPrice = _UNUSED_BASE_ == 0
+                ? _I_
+                : DecimalMath.divCeil(poolQuote, _UNUSED_BASE_);
+            uint256 baseDepth = DecimalMath.mulFloor(avgPrice, poolBase);
+
+            if (poolQuote == 0) {
+                // ask side only DVM
+                _poolBaseToken = address(_BASE_TOKEN_);
+                _poolQuoteToken = address(_QUOTE_TOKEN_);
+                _poolI = _I_;
+            } else if (poolQuote.mul(_UNUSED_BASE_) == poolQuote.mul(poolBase)) {
+                // standard bonding curve
                 _poolBaseToken = address(_BASE_TOKEN_);
                 _poolQuoteToken = address(_QUOTE_TOKEN_);
                 _poolI = 1;
diff --git a/contracts/lib/DODOMath.sol b/contracts/lib/DODOMath.sol
index c0b0962..ad97d57 100644
--- a/contracts/lib/DODOMath.sol
+++ b/contracts/lib/DODOMath.sol
@@ -43,7 +43,7 @@ library DODOMath {
         require(V0 > 0, "TARGET_IS_ZERO");
         uint256 fairAmount = i.mul(V1.sub(V2)); // i*delta
         if (k == 0) {
-            return fairAmount;
+            return fairAmount.div(DecimalMath.ONE);
         }
         uint256 V0V0V1V2 = DecimalMath.divFloor(V0.mul(V0).div(V1), V2);
         uint256 penalty = DecimalMath.mulFloor(k, V0V0V1V2); // k(V0^2/V1/V2)