TOPIC:

I just installed simplesalestax.com/ and then went to see if our local sales taxes are calculating correctly and
ran into this error related to Advanced Shipping Rules:

Syntax error during evaluation, RPN is not well formed! (Full rule: 'Shipping=17%')
Unknown error occurred during evaluation of rule 'Shipping=17%'.
Outstack:
Array
(
[0] => Shipping
[1] => 17
[2] => %
[3] => =
)
Assignments are not allowed inside expressions (rule given was 'Shipping=17%')
Unknown rule type '' encountered for rule 'Name="17Percent";Amount>=88.24;Shipping=17%'

Any recommendations?

Dear BBurnett,
The plugin does not support the % notation. Instead of 17% you need to write 0.17

Best regards,
Reinhold

The side bar says "In the advanced version, all expressions may contain arbitrary basic arithmetic expressions (+, -, *, /, %, ^ and parentheses) of the above variables and functions like max(..), min(..), round(..), ceil(..), floor(..), day(), month(), etc.."

We purchased the advanced version. We shipping to be 17% of the product total with a $15 minimum. I thought this had been working:
Name="Minimum15";Amount<88.24;Shipping=15
Name="17Percent";Amount>=88.24;Shipping=17%

Dear BBurnett,
Thank you for pointing out that text. The % Operator in the rules does not mean Percent, but the remainder of a Division.

As I said, 17% is the same as 0.17, which is understood by the plugin.So instead of Shipping=17%, you'd Need to writeAdditionally, If you want your shipping costs to be 17% of the total order amount, but at least $15, you can combine these two into one rule:
Best regards,
Reinhold