Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to calculate oee [title] Know the 3 major elements of oee. [step] Operations pros identify the core factors of the oee measurement as availability, performance and quality. [title] Figure out the availability component of oee.

Ending1: [step] Divide the actual production time by the total planned production time. [substeps] For example, if the equipment is planned to run 24/7, but averages a total of 12 hours of down time each day, the availability result would be 50 percent. Ending2: [step] System availability [title] Think about how much oee you need in a workday. [step] To calculate oee, think about how many hours of activity you need per day. Ending3: [step] In order to determine oee, you must first use operations pros. Operations pros evaluate how flexible game systems are. Ending4: [step] This is the total amount of revenue necessary for a given operation. [title] Make sure that the amount of revenue is the actual amount of time needed for the work.

Answer format: ending1/ending2/ending3/ending4