Take a photo of the day's paperwork. Every number gets checked, or flagged for a person.

For people who run a few gas stations.

Email ushello@paperproof.io

Each number has to add up with the rest of the paper.

A phone photo of Linden Street's daily department sales for Tuesday, October 6, on a counter. Six departments add up to a store total of 4,062.60, with a clerk's pen ticks beside them. — Tuesday's sales report from Linden Street.

On this paper

Departments add up to the store totalThese 6 lines add up to 4,067.60. The paper says 4,062.60.Needs you
Items add up to the total912 itemsVerified

Cash, card and lottery money each get their own line.

79 of 79 checks passed on three real papers: a sales report, a fuel delivery slip and a tank tape.

By hand, someone types every number off the paper, then adds it all up again. Here, a clerk takes one photo.

A program reads the photo. A person sees anything it is unsure of.

Tap any number to see where it is printed.

Tuesday's sales report. 1 needs you.

Flagged: Tobacco

Departments
Department	Items	Net sales
Grocery	212	1,046.35
Beverages	341	1,187.40
Tobacco	96	908.10
Snacks	158	412.75
Dairy	44	178.20
Hot food	61	334.80
Store total	912	4,062.60

One photo at the counter. Nothing to type.

The camera takes the photo itself once the paper is steady.

The lines your papers can answer, filled in.

The sales tax worksheet and the fuel purchase log, from the papers each station sends. Lines no paper answers, like sales tax, are left for your accountant.

Sales tax worksheet, July to September
Linden Street	Jul	Aug	Sep
Gas sales	148,320.55	152,904.10	139,877.35
Other sales	118,406.20	121,733.85	114,092.40
Lottery sales	9,812.00	10,245.00	9,530.00
Prepaid fuel tax	7,141.62	7,402.19	6,775.44