He used a simple formula to 'guesstimate' the amount of material he would need for the job.
He made a 'guesstimate' of how much material he needed.
(..) that blasphemy, boy. You're in a house of worship. Sorry, Pop. Well, this is definitely the work of professionals. I'd guesstimate Mexican Mafia hit squad. Four, maybe five strong. How can you tell? Well, a sure and steady hand did this. (..)2003 Kill Bill: Vol. 1