how do i subtract a negative number

  • Thread starter Thread starter Guest
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Guest

i am creating a profit and loss statement in excel. the problem that i am
having is for example: food sold - cost of food =sum(c1-c6) but if my
food sold is zero and my cost of food is a negative number this equation
gives me a positive number. i want a general equation that will give me the
correct answer if the numbers in the equation are positive or negative
 
What *is* the correct answer if your revenue from sales is zero, and
your costs are negative (I'm assuming you got a refund)?

If you're entering costs as negative numbers, then you just have to add
revenue and cost:

= C1 + C6

(Note that the SUM() function in your example is not necessary).
 
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