When i set the percentage off to 20% in a coupon and make a purchase, the value that is returned from this:
tends to differ, on my example purchases, i would get 17%, then 21% etc. I am yet to make a purchase where it had taken 20% off exactly.
Why is the
cart_discount_percent_of_total never exactly the percent i entered when i created the coupon, which in this example is 20%? The products are high value so the a few percent could amount to hundreds of pounds.
EE - 2.10.1
CT Pro - 2.7