*I have checked Taxes are calculated as below
1. If country is Canada and state is not Ontario we apply 5% tax.
2. If state is Quebec we apply 9.975% further tax which becomes total 9.975+5 = 14.975% in total for Quebec State
3. If its Ontario state we apply 13% tax so total 13% is applied.
Please let me know if we want to apply something else or want to update it.*