Need to know the amount spent to the project and profit

Need to know the amount spent to the project and profit

Hi Team,

I required 1 help in zoho invoice,is there any way to track the amount which we have spent to 1 project ex : purchased lan cable,patch card & labour bill,then we need to raise the bill to customer.

In the final output i need to know that remaining amount is our profit.where can i see this option.

Regards,
Rajesh.S