What is 69.99 with 40% off and with 8.875 tax?
Note.....something priced at 40% off must just be worth 60% of its original value.....so.....the total cost is....
(New value) + (New Value * Tax) \
(New Value) ( 1 + Tax) =
(69.99 * .60 ) ( 1 + .08875) ≈ $ 45.72 = Total Cost