diff --git a/model/end_user_detail.go b/model/end_user_detail.go
index 7356fd6..66bbf49 100644
--- a/model/end_user_detail.go
+++ b/model/end_user_detail.go
@@ -73,6 +73,7 @@ func (d EndUserDetail) Validate() (bool, error) {
 }
 
 func (d *EndUserDetail) CalculatePeriod() {
+	d.LastPeriodFlat = d.LastPeriodOverall.Sub(d.LastPeriodCritical).Sub(d.LastPeriodPeak).Sub(d.LastPeriodValley)
 	d.CurrentPeriodFlat = d.CurrentPeriodOverall.Sub(d.CurrentPeriodCritical).Sub(d.CurrentPeriodPeak).Sub(d.CurrentPeriodValley)
 	d.Overall = decimal.NewNullDecimal(d.CurrentPeriodOverall.Sub(d.LastPeriodOverall).Mul(d.Ratio).Add(d.AdjustOverall).RoundBank(2))
 	d.Critical = decimal.NewNullDecimal(d.CurrentPeriodCritical.Sub(d.LastPeriodCritical).Mul(d.Ratio).Add(d.AdjustCritical).RoundBank(2))
diff --git a/service/end_user.go b/service/end_user.go
index b417d67..96ae9b6 100644
--- a/service/end_user.go
+++ b/service/end_user.go
@@ -210,6 +210,10 @@ func (es _EndUserService) BatchImportNonPVRegister(reportId string, file io.Read
 			}); has {
 				if appears.Appears <= 1 {
 					elem.LastPeriodOverall = im.LastPeriodOverall
+					elem.LastPeriodCritical = decimal.Zero
+					elem.LastPeriodPeak = decimal.Zero
+					elem.LastPeriodValley = decimal.Zero
+					elem.LastPeriodFlat = elem.LastPeriodOverall.Sub(elem.LastPeriodCritical).Sub(elem.LastPeriodPeak).Sub(elem.LastPeriodValley)
 					elem.Initialize = true
 				}
 			}
@@ -303,6 +307,7 @@ func (es _EndUserService) BatchImportPVRegister(reportId string, file io.Reader)
 					elem.LastPeriodCritical = im.LastPeriodCritical.Decimal
 					elem.LastPeriodPeak = im.LastPeriodPeak.Decimal
 					elem.LastPeriodValley = im.LastPeriodValley.Decimal
+					elem.LastPeriodFlat = elem.LastPeriodOverall.Sub(elem.LastPeriodCritical).Sub(elem.LastPeriodPeak).Sub(elem.LastPeriodValley)
 					elem.Initialize = true
 				}
 			}