I know your code work to get the cost, GST value and PST Value.
To do it you use the reversed rate value 1.15025.

Do you know how to get this value(1.15025) from the taxes rates ?
In my case I have to do this for all provinces.

>>I have the taxes rate. Now I like to find a way to calculate the .15025 value.
>>Do you know the formula to get this number?
>
>You have it in there. Each amount are indicated.