For example:
$100 + 4.0% NCA = $104.00
$100 * 5% sales tax = $105.00
$105 * 3.81% (Daily Discount Rate) = $4.00 collected
$105 * 3.81% (Flat Rate) = $4.00 collected
For Example:
$100 + 4.0% NCA = $104.00
$104 * 5% sales tax = $109.20
$109.20 * 3.66% (Daily Discount Rate) = $4.00 collected
$109.20 * 3.66% (Flat Rate) = $4.00 collected