My business is in Oak Grove, Missouri and is a rural business. I am required to collect state sales tax and county sales tax, however, I am not required to collect city sales tax as I am not within the city. However, Shopify calculates the sales tax with the city tax included. I did an override, however, it is not working. Please advise on how to do this. Total tax should be 5.6%. I did a 5.6% shipping in MO override. What am I missing here?