diff --git a/dist/index.d.ts b/dist/index.d.ts
index bd2f784..6bf4456 100644
--- a/dist/index.d.ts
+++ b/dist/index.d.ts
@@ -3425,7 +3425,7 @@ interface Market {
      * The formula:
      *
      * ```
-     * Math.ceil( amount * (Math.log(0.1*linearDistanceBetweenRooms + 0.9) + 0.1) )
+     * Math.ceil(amount * (1 - Math.exp(-linearDistanceBetweenRooms / 30)))
      * ```
      *
      * @param amount Amount of resources to be sent.
diff --git a/src/market.ts b/src/market.ts
index 5dd7de2..7b0eab9 100644
--- a/src/market.ts
+++ b/src/market.ts
@@ -29,7 +29,7 @@ interface Market {
      * The formula:
      *
      * ```
-     * Math.ceil( amount * (Math.log(0.1*linearDistanceBetweenRooms + 0.9) + 0.1) )
+     * Math.ceil(amount * (1 - Math.exp(-linearDistanceBetweenRooms / 30)))
      * ```
      *
      * @param amount Amount of resources to be sent.