Calculate price before tax

ladydidan

New member
Joined
Jan 14, 2010
Messages
2
I used to know how to do this but, at 62, have forgotten. I know the final price; $4650.00. I know the shipping/handling charge is 7%. How do I calculate the cost BEFORE shipping/handling is added?
 
The value you now have is the original value with the 7% of the original value added.

7% of an amount is \(\displaystyle \frac{7}{100}=0.07\) of that amount

So you can say

\(\displaystyle 4650=(1.07)original.\)

Therefore the original pre-Shipping&Tax amount is

\(\displaystyle \frac{4650}{1.07}\)
 
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