Where the percentage-of-completion adjustment comes from

Cost drives the percentage complete. The percentage complete drives revenue earned. The gap between revenue earned and what you have actually billed is the adjustment — and it lands on the balance sheet as an asset or a liability.

Costs incurred to date
Spent so far
Left to spend
Total estimated cost
Billed so far
Left to bill
Total contract amount
Billings to date
Job status
Percent complete (cost-to-cost)
Revenue earned to date
Less: billings to date
Percentage-of-completion adjustment
Gross profit earned to date
Estimated gross profit at completion
Adjusting entry

Debits positive, credits negative.

The estimate on the books has gone stale

Same job, same life-to-date view. The costs and billings are the ones you set above. The only change: the cost to finish has really moved, and the estimate driving your percent complete has not been updated. Percent complete is measured against a denominator that is now wrong, so revenue, gross profit, and your billing position are all wrong with it.

Estimate on the books — the denominator you are using
Spent so far
Left to spend
Estimate on the books
What the job will really cost — the denominator you should be using
Spent so far
Left to spend
Not in the estimate
Real cost at completion
Contract — what you have booked against what you have earned
Earned and booked
Left to earn
On the books vs. actual
On the booksActualVariance