I'm pretty sure masters know the best move over 50% of the time based on their memory/knowledge/experience and that percentage is higher for GMs.
I assume you meant sheer calculation and not sheet.
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At the level starting from expert (2000) to Gm (2500) level during the average game what percentage of moves are based on memory/knowledge/experience as opposed to using sheet calculation? Eg 70% of the game moves in a game ate not based on sheet calculation. ( I just would like a rough generalization)