Page sum in Crystal report

HI, Iwant to calculate page sum in page footer and show same amount in next report headder
ie My column Amount look like
in page1
 
Amount
-----------------
1
2
5
6
---
sum:14
 

page 2
 
Amount
-------------
b/F:14
-----
10
6
10
----
sum:40
 
iam tried this in
allsumFormula: WhilePrintingRecords ;
shared numberVar totalsetPsum;
shared numberVar totalPiecesPSum;
shared numberVar totalAmountPSum;
totalsetPsum:=totalsetPsum+{sp_report_select_view_madeup_shipping_instruction_details;1.totalsetreg}; totalPiecesPSum:=totalPiecesPSum+{sp_report_select_view_madeup_shipping_instruction_details;1.totalpcsreg}; totalAmountPSum:=totalAmountPSum+{sp_report_select_view_madeup_shipping_instruction_details;1.value};
 
in
sumheadder: WhilePrintingRecords ;
shared numberVar totalsetPsum; if PageNumber <>1 then totalsetPsum-{sp_report_select_view_madeup_shipping_instruction_details;1.totalsetreg};
but in odd and even pages they give different value