diff --git a/src/constants.cairo b/src/constants.cairo
index b7856e9b1..0ba496e49 100644
--- a/src/constants.cairo
+++ b/src/constants.cairo
@@ -22,6 +22,6 @@ const PRICE_VAR_MIN: u8 = 1; // 1%
 const PRICE_VAR_MAX: u8 = 5; // 5%  
 
 // market price events
-const MARKET_EVENT_CHANCE: u8 = 2; // 2%      = 1% up / 1% down
+const MARKET_EVENT_CHANCE: u8 = 1; // 2%      = 1% up / 1% down
 const MARKET_EVENT_MIN: u8 = 50; // 50%  
 const MARKET_EVENT_MAX: u8 = 100; // 100%  
diff --git a/src/systems/travel.cairo b/src/systems/travel.cairo
index 2209ad48b..37e80cbd8 100644
--- a/src/systems/travel.cairo
+++ b/src/systems/travel.cairo
@@ -125,7 +125,7 @@ fn market_variations(ctx: Context, game_id: u32) {
                                 price_variation_with_cash(
                                     ctx, game_id, *location_id, *drug_id, ref seed, false
                                 );
-                            } else if rand > 50 && rand < 50 + MARKET_EVENT_CHANCE.into() {
+                            } else if rand > 50 && rand <= 50 + MARKET_EVENT_CHANCE.into() {
                                 // big move up
                                 price_variation_with_drug(
                                     ctx, game_id, *location_id, *drug_id, ref seed, true
@@ -139,7 +139,7 @@ fn market_variations(ctx: Context, game_id: u32) {
                                         increase: true
                                     }
                                 );
-                            } else if rand < 50 && rand > 50 - MARKET_EVENT_CHANCE.into() {
+                            } else if rand < 50 && rand >= 50 - MARKET_EVENT_CHANCE.into() {
                                 // big move down
                                 price_variation_with_drug(
                                     ctx, game_id, *location_id, *drug_id, ref seed, false