For Shipping coupons, discount is being subtracted before tax. It needs to happen after tax. Calculate the discount before tax (Coupons) is set to 'No'.
Here is what the order total looks like:
SubTotal: $199.11 $0.00 $0.00 $199.11
Coupon Discount $-27.82
IM Sales Tax (IL) $0.00 $0.00
Food Sales Tax (IL) $1.71 $1.71
Shipment Fee: $27.82 $0.00 $27.82
Payment Fee: $0.00 $0.00 $0.00
Total: $1.71 $0.00 $200.82
Shipping cost is being removed first, causing the tax amount (1%) to be incorrect.
Here is what the order total looks like:
SubTotal: $199.11 $0.00 $0.00 $199.11
Coupon Discount $-27.82
IM Sales Tax (IL) $0.00 $0.00
Food Sales Tax (IL) $1.71 $1.71
Shipment Fee: $27.82 $0.00 $27.82
Payment Fee: $0.00 $0.00 $0.00
Total: $1.71 $0.00 $200.82
Shipping cost is being removed first, causing the tax amount (1%) to be incorrect.