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  • Formula for calculating RTO; using turnover

    I am not new in this world of standrads, but have difficulty explaining to people how they should calculate their acceptable losses (due to RTO). People waiting to get some kind of formula, though I believe that such a formula does not exist. I'm trying to relate it to turnover (percentage of it) but I´m not sure what is the best practice in that, which percentage is usually preferred. I know that there are many other dependencies too.