Create A check Box & Click on the Add button The Selected columns was Add to the invoice

R/Sir
i am Crete a 9 check box (P2 to P9 columns ) than i am click on the check box the & click on the add button the selected check box was add to the invoice after total
for example
i am selected on the 3 check box & click on the add button the 3 selected check box was added to the invoice after the total amount of the invoice
Total 9000
output vat @ 5% 450
fright charges 200
round off -
grand total 9650

i am selected on the 4 check box & click on the add button the 4 selected check box was added to the invoice after the total amount of the invoice
Total 9000
output vat @ 5% 450
output vat @ 13.75% 1237
round off -
grand total 10687

now you can see the attachments & send the VBA code for this excel sheet