Haul MathHaul Math shopping guides
Better answers start with your receipts.
Find a past purchase, understand a month of spending, or compare the price you paid. Practical examples for Costco shoppers, with the assumptions and math shown.
Find a receipt
How do I find an old Costco receipt?
Find available Costco warehouse and online receipts, save a copy, and organize imported purchases. Includes a fictional receipt-search example.
Understand your spending
How much did I actually spend at Costco?
Calculate Costco spending after returns, separate purchases from payments, and check missing receipt coverage. A fictional monthly example shows the math.
Compare prices you paid
Did I pay less for this Costco item last time?
Compare the same Costco item using receipt discounts, quantity, and unit price. Includes original worked examples and explains where Haul Math fits.