diff --git a/nflg_project_dev/nflg-technology/src/main/java/com/nflg/product/technology/service/BomCostCalculateService.java b/nflg_project_dev/nflg-technology/src/main/java/com/nflg/product/technology/service/BomCostCalculateService.java
index fc103dab..2d02355a 100644
--- a/nflg_project_dev/nflg-technology/src/main/java/com/nflg/product/technology/service/BomCostCalculateService.java
+++ b/nflg_project_dev/nflg-technology/src/main/java/com/nflg/product/technology/service/BomCostCalculateService.java
@@ -23,6 +23,7 @@ import org.springframework.stereotype.Component;
 
 import javax.annotation.Resource;
 import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.time.Duration;
 import java.util.*;
 import java.util.stream.Collectors;
@@ -300,7 +301,8 @@ public class BomCostCalculateService {
                 wastage = Optional.ofNullable(steelsCostConfigEntity.getWastage()).orElse(BigDecimal.ZERO);
             }
         }
-        return price.multiply(BigDecimal.ONE.add(wastage).multiply(unitWeight));
+        return price.multiply(BigDecimal.ONE.add(wastage.divide(BigDecimal.valueOf(100), 4, RoundingMode.HALF_UP))
+                .multiply(unitWeight));
     }
 
     private String buildKey(EBomDTO dto) {