







The cost before the sales tax 
20140413 

Juanda pose la question : Hello,
I know the customer cost with tax and I know the sales tax.
How do I find out the customer cost prior to the added sales tax?
Thank you Penny Nom lui répond. 





The price before tax 
20100215 

dawn pose la question : the sale tax on a cape was 6%,and total price with tax was $92.75,what was the price of the cape? Penny Nom lui répond. 





PST and GST 
20090120 

janet pose la question : Hello
I need to figure what one would pay pst 8% gst 5% on a total of $1700.00
I have a small business some pay with cash I need to calculate the taxes in reverse Can you help with formula that the government might like
Thank you
Janet Harley Weston lui répond. 





Cost before and after the GST 
20081001 

bruce pose la question : Hi, i seem confused on this topic:
If i need to add say 10% GST to a cost then i would times it by 1.1.
If i need to reduce the cost by 10% then i need to divide it by 1.1. that is all well and good.
What if i need to add 12%, 18% or 20% what is the formula then? Penny Nom lui répond. 





What is the GST component? 
20080611 

Jilly pose la question : I need to find a quick and easy formula for finding the gst (10%) of the total amount in $ terms, eg: the total is $500 what is the gst component? Penny Nom lui répond. 

