diff --git a/apps/web/process/payments/reactions/common.ts b/apps/web/process/payments/reactions/common.ts
index 92719be..b9b1fd5 100644
--- a/apps/web/process/payments/reactions/common.ts
+++ b/apps/web/process/payments/reactions/common.ts
@@ -471,6 +471,7 @@ export default function reactions({ store }: ProcessContext) {
         () => {
           $calculation.element('selectSeasonType').resetValue();
           $calculation.element('selectHighSeasonStart').resetValue();
+          $calculation.element('tbxParmentsDecreasePercent').resetValue();
         }
       ),
     () => $process.has('LoadKP')