From 2bf6ec05e91abe04115d7fcec0742b3e16a16ba8 Mon Sep 17 00:00:00 2001
From: SolidityDrone <pnn.claudio@gmail.com>
Date: Wed, 30 Oct 2024 18:39:07 +0100
Subject: [PATCH] removed market fee when selling shares back to the market

---
 src/MultiOutcomePredictionMarket.sol    | 8 ++++----
 test/MultiOutcomePredictionMarket.t.sol | 2 ++
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/MultiOutcomePredictionMarket.sol b/src/MultiOutcomePredictionMarket.sol
index ef59451..b5db0d4 100644
--- a/src/MultiOutcomePredictionMarket.sol
+++ b/src/MultiOutcomePredictionMarket.sol
@@ -168,12 +168,12 @@ contract MultiOutcomePredictionMarket is IMultiOutcomePredictionMarket {
 
         uint sellReturn = calculateSellReturn(marketId, optionId, quantity);
         market.options[optionId].shares -= quantity;
-        uint sellReturnAfterFees = (sellReturn * 90 / 100);
+        
 
-        userVolume[msg.sender] -= sellReturnAfterFees;
-        market.prizePool -= sellReturnAfterFees;
+        userVolume[msg.sender] -= sellReturn;
+        market.prizePool -= sellReturn;
 
-        IERC20(USDC_BASE_SEPOLIA).transfer(msg.sender, sellReturnAfterFees);
+        IERC20(USDC_BASE_SEPOLIA).transfer(msg.sender, sellReturn);
 
         _updateMarketPrices(marketId);
     }
diff --git a/test/MultiOutcomePredictionMarket.t.sol b/test/MultiOutcomePredictionMarket.t.sol
index 8f2caf5..20dd207 100644
--- a/test/MultiOutcomePredictionMarket.t.sol
+++ b/test/MultiOutcomePredictionMarket.t.sol
@@ -127,6 +127,8 @@ contract MultiOutcomePredictionMarketTest is Test {
         uint256 rewardForNextShare = predictionMarket.calculateSellReturn(1, 0, 1);
         
         predictionMarket.sell(1,0,1);
+        assertEq(rewardForNextShare, 125000);
+
     }
 
     function testOptionMarketResolutoin() public {