Daily production is now per worker

If you priced a labor line off a production rate, the calculator was treating your daily production figure as the crew's combined output. Type 200 SF/day with a crew of four and it billed as though four workers together managed 200 SF — four times the labor cost the number actually described.

Daily production now means what one worker finishes in a shift, which is how estimators say it out loud. The math follows:

• Unit cost = loaded rate × hours per shift ÷ daily production. Crew size drops out of it, and rightly: four workers cost four times as much per day and finish four times as fast.
• Working days = quantity ÷ (crew × daily production). Add people, finish sooner.
• Labor-days = crew × working days — unchanged in meaning, one worker for one shift.

Change the crew size and the duration re-derives in front of you. The field is labeled /day per worker so there's no guessing, and the CSV daily_production_qty column reads the same way.

Worth a look at your open estimates. Lines you already priced this way kept the unit cost that was applied at the time — nothing moved on its own. Reopen the calculator on a production-priced labor line and apply it again to pick up the corrected figure.