Should amortization be deducted from sales for the calculation of gross profit?
I want to evaluate profitability by customer. For that I'm looking at gross profit by customer. But I don't know what to do with amortization. Should I take it into account in the GP calculation or after GP?
Some special industries include amortization as direct costs, like rental business--but that's rare.
And then some people talk about gross profit as gross margin less expenses. In that case, amortization, which is an expense, would count.