How do I formulate total before Gst?
how do I formulate cells to get a total BEFORE gst was added? Example : item
cost 20.00 Gst 1.00 = 21.00 I have a columm for the "item cost" without gst added...then a gst columm...is there a way to formulate the 'item cost " cell so I don't have to subtract the gst total from the grand total every time I enter a price? (Office 2007) |
How do I formulate total before Gst?
"Maggie1959" wrote in message ... how do I formulate cells to get a total BEFORE gst was added? Example : item cost 20.00 Gst 1.00 = 21.00 I have a columm for the "item cost" without gst added...then a gst columm...is there a way to formulate the 'item cost " cell so I don't have to subtract the gst total from the grand total every time I enter a price? (Office 2007) |
How do I formulate total before Gst?
"Maggie1959" wrote:
how do I formulate cells to get a total BEFORE gst was added? Ostensibly, if the GST is in B1 (5% or 0.05) and the total after adding GST is in C1 (21.00), the item cost is: =ROUND(C1 / (1+B1), 2) One caveat: the item cost plus GST must be rounded to the smallest coin of the realm, since it is an actual amount to be paid. (For the same reason, I rounded the item cost above.) So theoretically, dividing that amount by 1+GST might not result in exactly the original item cost. But I have not yet come up with an example, based on reasonable GST and item cost amounts. So maybe it won't be a problem, after all. [Sorry for the previous empty response. Push the wrong key, I guess.] ----- original message ----- "Maggie1959" wrote in message ... how do I formulate cells to get a total BEFORE gst was added? Example : item cost 20.00 Gst 1.00 = 21.00 I have a columm for the "item cost" without gst added...then a gst columm...is there a way to formulate the 'item cost " cell so I don't have to subtract the gst total from the grand total every time I enter a price? (Office 2007) |
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