Issue with total-tab not working in delivery-slip.tpl

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Hi guys.

I'm new to Prestashop.

My question is How can we display total in delivery-slip.tpl.

I copied all the data from invoice.tpl and pasted in delivery-slip.tpl
Everything works like {product-tab}, {address-tab} but I'm unable to display total price ,total tax and son in delivery-slip.tpl

Can anyone help me please

Thanks in advance

 

I have attached my invoice.tpl and delivery-slip.pdf below.IN000003 (6).pdfDE000003 (43).pdf