Edited to include Red Card discount.
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Late to the game, but figuring out your discount is part simple math, part "Ms. Jones always told me that I'd use this math someday" plus/minus grouping.
So you are a TM and you are wanting to know your discount prior to checking out. And you are buying a nice collection of items.
C9 leggings - $25
Simply Balanced tilapia fillets that are on Circle - $7 plus 5%
Up & Up body wash that is on Circle - $4 plus 5%
Pantene shampoo and conditioner - $5 each
Tide Pods on Circle - $12 plus 10%
Up & Up bleach that is on Circle - $2 plus 5%
State sales tax is 4%. You are paying with your Red Card.
The numbers to punch in your phone (in scientific mode) that will bring it within pennies of being right is:
(((
(25+
(7*0.95
)*0.8
)+
((4+2
)*0.95
)+
(12*0.9
)+
(5+5
))*0.9
)*0.95
)*1.04=total bill
Or, so you can recreate it while shopping -
(Hint - calculate what you will pay after the discounts are taken out, not what your discounts are.)
Group the veggies discount together and the non veggies discount together. Figure them separately. Within each grouping, then group together items with the same Circle percent off, and figure those totals separately.
As above, C9 and tilapia are together, but tilapia has a discount figured in before being added to C9. Bleach is with body wash because they both have a 5% offer. Bleach, body wash, Tide pods, shampoo and conditioner are all added together separately from C9 and tilapia.
Then the two groups are added together and the cost after TM discount is figured. Then Red Card discount. Finally, a little brain wrapping, figure out what you will pay after sales tax, not what sales tax is. So with 4% sales tax, you will pay 104% of the end total, or 1.04.
It can be tricky, if you have more than a hand basket of items, trying to figure out where a parenthesis should be placed, but with Google docs you could create a spreadsheet for on the go. When I was trying to figure out exactly where my money was going I had a very long spreadsheet. Entering all items individually into my spreadsheet would result in an end total less than a dollar different from the receipt end total, and a lot of times it was a perfect total match.
