diff --git a/process/payments/reactions.ts b/process/payments/reactions.ts
index 07043c9..d9efdf2 100644
--- a/process/payments/reactions.ts
+++ b/process/payments/reactions.ts
@@ -403,6 +403,20 @@ export default function paymentsReactions(
     }
   );
 
+  function generateSeasonPaymentsRows(seasonType: number, shiftNumber: number, payments: number[]) {
+    const shiftedPeriods = new Set(
+      seasonsConstants.SEASONS_PERIODS[seasonType].map(
+        (position) => (position + shiftNumber) % seasonsConstants.SEASONS_PERIOD_NUMBER
+      )
+    );
+    const rows: Row[] = payments.map((value, i) => ({
+      value,
+      status: shiftedPeriods.has(i) ? 'Default' : 'Disabled',
+    }));
+
+    return rows;
+  }
+
   reaction(
     () => {
       const seasonType = $calculation.getElementValue('selectSeasonType');
@@ -434,15 +448,7 @@ export default function paymentsReactions(
         leasingPeriod,
         shift(seasons, shiftNumber)
       );
-      const shiftedPeriods = new Set(
-        seasonsConstants.SEASONS_PERIODS[seasonType].map(
-          (position) => (position + shiftNumber) % seasonsConstants.SEASONS_PERIOD_NUMBER
-        )
-      );
-      const rows: Row[] = payments.map((value, i) => ({
-        value,
-        status: shiftedPeriods.has(i) ? 'Default' : 'Disabled',
-      }));
+      const rows: Row[] = generateSeasonPaymentsRows(seasonType, shiftNumber, payments);
       const firstPaymentPerc = $calculation.getElementValue('tbxFirstPaymentPerc');
       const lastPaymentPerc = $calculation.getElementValue('tbxLastPaymentPerc');
 
@@ -494,15 +500,7 @@ export default function paymentsReactions(
         leasingPeriod,
         shift(seasons, shiftNumber)
       );
-      const shiftedPeriods = new Set(
-        seasonsConstants.SEASONS_PERIODS[seasonType].map(
-          (position) => (position + shiftNumber) % seasonsConstants.SEASONS_PERIOD_NUMBER
-        )
-      );
-      const rows: Row[] = payments.map((value, i) => ({
-        value,
-        status: shiftedPeriods.has(i) ? 'Default' : 'Disabled',
-      }));
+      const rows: Row[] = generateSeasonPaymentsRows(seasonType, shiftNumber, payments);
       const firstPaymentPerc = $calculation.getElementValue('tbxFirstPaymentPerc');
       const lastPaymentPerc = $calculation.getElementValue('tbxLastPaymentPerc');