To get a quick estimate of your company’s probable downtime costs, use the following formula, based on the size of your business and the number of minutes your most recent incident lasted: Downtime cost = minutes of downtime x cost-per-minute. For small business, use $427 as cost-per-minute. For medium and large, use $9,000.

downtime from your planned operating time. This will tell you your actual/true operating time. Typically, we talk about downtime in percentages. To get that result, use this equation: Time equipment is down/Planned operating time * 100 = Downtime % This will be extra handy for scheduling maintenance.