diff --git a/src/battle-scene.ts b/src/battle-scene.ts
index e6649d0999a..6c8ea21c936 100644
--- a/src/battle-scene.ts
+++ b/src/battle-scene.ts
@@ -2576,9 +2576,7 @@ export default class BattleScene extends SceneBase {
   }
 
   getWaveMoneyAmount(moneyMultiplier: number): number {
-    const waveIndex = this.currentBattle.waveIndex;
-    const waveSetIndex = Math.ceil(waveIndex / 10) - 1;
-    const moneyValue = Math.pow((waveSetIndex + 1 + (0.75 + (((waveIndex - 1) % 10) + 1) / 10)) * 100, 1 + 0.005 * waveSetIndex) * moneyMultiplier;
+    const moneyValue = (this.currentBattle.waveIndex + 17.5) * 17 * moneyMultiplier;
     return Math.floor(moneyValue / 10) * 10;
   }
 
diff --git a/src/modifier/modifier-type.ts b/src/modifier/modifier-type.ts
index 112a3c9aa35..4578d568955 100644
--- a/src/modifier/modifier-type.ts
+++ b/src/modifier/modifier-type.ts
@@ -2536,7 +2536,7 @@ export class ModifierTypeOption {
   constructor(type: ModifierType, upgradeCount: number, cost: number = 0) {
     this.type = type;
     this.upgradeCount = upgradeCount;
-    this.cost = Math.min(Math.round(cost), Number.MAX_SAFE_INTEGER);
+    this.cost = Math.min(Math.round(cost / 10) * 10, Number.MAX_SAFE_INTEGER);
   }
 }