Paper ballots can be manually counted in different ways--sort by candidate and then count the ballots; stack the ballots into groups of 20 and 100 and then have counters mark tally sheets as they go through the stack one-by-one; and more.
Affordable technology--a simple digital camera hooked up to a projector--can beat all these methods on each of the four attributes of a good manual-counting method.
1. Ballot security.
Ballots must not be altered by the manual count. Sorting and stacking methods require the ballots to be handled several times, by several people, and moved around tables. When ballots are projected, only one person needs to handle the ballots, only once, and can keep them on one table, in full view.
In a manual count, accuracy is established with redundant counts—two or more people must agree on each vote, reconciling any disagreement. When counters make errors in sort-and-stack or tally-sheet methods, finding and reviewing the problem ballot can take a lot of time and ballot-handling. With projected ballots, everyone sees the same vote at the same time, so ambiguous votes can be reconciled when they are first encountered.
Faster methods of manual counting help to restrain costs, because labor is the biggest cost. Quicker counting also makes the task more pleasant for both counters and observers. Projected-ballot manual counts have accurately counted votes in one race at a rate of 100 ballots every four minutes, including time to stop to compare paired counters' totals and resolve any differences. Depending on ballot design, two races could go just as fast.
The value of a manual count depends upon how much trust it produces in candidates and voters. In traditional manual-count methods, observers cannot see ballots well enough to verify for themselves that the votes are being counted accurately and honestly.
When the ballots are projected, observers see exactly what the official counters see. In addition, because projected-ballot counts require no ballot-handling by the counters, observers can be drafted on the spot as official counters--powerfully counteracting any distrust.
A tally sheet completed in full view of all counters and observers serves as a record of the manual count.
A pdf document containing step-by-step instructions is here.