diff --git a/internal/router/farmer.go b/internal/router/farmer.go
index 5d44c2f..f701cce 100644
--- a/internal/router/farmer.go
+++ b/internal/router/farmer.go
@@ -1,6 +1,8 @@
 package router
 
 import (
+	"strconv"
+
 	"github.com/labstack/echo/v5"
 	"github.com/pocketbase/pocketbase/apis"
 	"github.com/pocketbase/pocketbase/core"
@@ -51,6 +53,22 @@ func (r *RouterContainer) bootstrapFarmerSurveyRoute() {
 				return apis.NewBadRequestError("Failed to read request data", err)
 			}
 
+			budgetSplit, err := validatePercentage(requestData.CropsProtectionExpenditurePercentage, requestData.FertilizerExpenditurePercentage, requestData.SeedsExpenditurePercentage)
+			if err != nil {
+				return apis.NewBadRequestError("Could not validate budget split percentage", err)
+			}
+			if !budgetSplit {
+				return apis.NewNotFoundError("Budget split percentage should add up to 100% ", err)
+			}
+
+			fertilizerSplit, err := validatePercentage(requestData.SyntheticFertilizersExpenditurePercentage, requestData.NaturalFertilizersExpenditure)
+			if err != nil {
+				return apis.NewBadRequestError("Could not validate fertilizer split percentage", err)
+			}
+			if !fertilizerSplit {
+				return apis.NewNotFoundError("Fertilizer split percentage should add up to 100% ", err)
+			}
+
 			if err := r.PB.Dao().RunInTransaction(func(txDao *daos.Dao) error {
 				userRecord, err := r.PB.Dao().FindFirstRecordByData("users", "phone", requestData.Phone)
 				if err != nil {
@@ -211,3 +229,15 @@ func (r *RouterContainer) bootstrapFarmerSurveyRoute() {
 		return nil
 	})
 }
+
+func validatePercentage(inputs ...string) (bool, error) {
+	sum := 0
+	for _, numStr := range inputs {
+		num, err := strconv.Atoi(numStr)
+		if err != nil {
+			return false, err
+		}
+		sum += num
+	}
+	return sum == 100, nil
+}