I am surprised that Zoho doesn't feature this basic requirement.
On my old system, if you were in a product screen, you would have three main metrics available to you:
Cost Price
- Sales Price
- Profit in money
- Profit Percentage
You also had a little profit calculator box where you could poke in say £10 discount and it would tell you the profit figures.
It featured greatly on the input of new products too. And the calculation of profit on an invoice. handy when you want to offer the customer a discount, but have no clue how much profit is on that bill.
This is a very basic requirement in my opinion and I shouldn't be left reaching for a calculator to work things out.